So I've already completed the Casino Heist as the Big Con and was forced to try a new method so I picked the Aggressive approach. I completed every optional mission (besides the Intel mission) but messed up on the Duggan mission, destroying only 1/10 helicopters (I had no clue what I was doing and yet to have a flying vehicle so the mission seemed impossible to complete in 10 minutes), needless to say all the security guards still have their heavy armor and helmets. I figured entering through the sewer would be the best bet so I start out in the basement. My teammates and I can't seem to figure out a way to even make it to the first keypads because we get blasted from every single angle possible. Any suggestions on how to go about this? Is there a way to restart optional missions or even restart the heist as a whole? Any insight would be helpful. Thanks in advance!!

I've done the Heist three times now with duos, I'm pretty sure I could even do it solo now.
Make sure you have the Drainage Tunnel option unlocked by swimming behind the compound during the scope out. UPDATE: Make sure you complete the Torch Prep as well! The Torch Prep will not be available in the submarine until you scope out the Drainage Tunnel infiltration point.
If solo, trios, or quads, Make sure you have bolt cutters by the main bay.
I enter through the drainage tunnel putting me right in the compound. UPDATE: I've used the submarine and the halo jump, but I imagine any vehicle will work. If you use the sub it will give you scuba gear, so avoid the pools while you're in the compound, otherwise it will put the scuba gear back on and remove your active weapon. Once you get out of the pool you'll lose 3-5 seconds taking the gear back off.
I suggest you take out all the guys stealthfully while taking out as few cameras as possible, 1 or 2 will be necessary unless you are really patient.
If you're doing it solo you don't need to worry about the key cards or gate keys. If you are doing duos+, then one key card is held by a guard, the other is up in Rubio's office.
Once you get to Rubio's office there will be a fingerprint hack (its easy once you understand how it works) and get the files using the combination given to you in the basement, don't exit through the gate, go back into the compound, grab the secondaries in the compound (duos+), and exit through the main entrance, that causes a save-state, so if you die you don't have to start all over. If you are duos your loot bag should be full. If you are in duos, I recommend grabbing the painting first and is much gold as you can carry, don't bother with the cash.
If you haven't alerted anybody by then, make your way down to the main dock, if solo, or trios, then get the secondary loot there, grab a boat and drive away from the island. Your escape is undefined, so even if you don't make it to your designated escape route, you can leave the island in any direction.
If you are in quads, there's a good chance your loot bags won't be full, at that point you can decide whether you want to go and grab more secondaries, or leave the island while still in one piece.
If you have been caught, kill everybody and book it out the main entrance towards the main dock where you can grab a boat and GTFO. Because I was in duos I had right around 2mil each time, the one time I set the guards off on the way out I only lost 60-80k.
From what I can see you cant hold more than 800k in your loot bag, I may be wrong though.
Potential cut: 6mil
SOLO: 1.1-1.9 Mil
DUOS: 1.1-2.7Mil
TRIOS: 1.1-3.5Mil
QUADS: 1.1-4.3Mil
That Is my experience. If anybody has any good useful information there, I'm sure it would be greatly appreciated to the community. Such as:
*Better ways out of the compound
*Secondary Target values
*Any way to get the full potential 6mil? (During my scope out I had 4.2mil in Secondary targets. That left a total of 5.3mil, I was probably missing two secondary targets somewhere on the island)
*Anything I may have missed
UPDATE: For those of you wondering how the payouts compare to the Diamond Casino Heist.
The payouts for the DC heist hard modes are as followed, not including aggressive.
Cash: don't bother, reset your heist
Artwork: 2.7mil - 2mil split - 100k per 5%
Gold: 2.8-3.1mil -2.1-2.4 mil split - 105k-120k per 5%
Artwork can be done with DUOS (1mil each depending on cut) but gold has to be done with TRIOS (1.2mil 50%, 600k 25%) unless you want to leave 250k on the table. Which Gold DUOS would pay the sililar to Artwork DUOS.
Your best opportunities to make money on GTA online are going to be Cayo Perico SOLO or DUOS and Diamond Casino DUOS.
On another note: I haven't timed it yet, but it seems to take less time to do all of the Cayo Perico preps than the Diamond Casino Preps (Aside from identifying secondary contents). The Diamond Casino Heist takes 15-25 minutes when done correctly with Big Con or Silently & Sneaky while the Cayo Perico heist can be completed in 7-15 minutes SOLO and DUOS.

Sets in GTA Online
Families
CGF/Chamberlain Gangster Families - Chamberlain Hills half/Western half of Forum Drive, from the project buildings (except the 2 project buildings on Carson Avenue which CAF own) as well as the skate park/baseball pitch West and North of Chamberlain Hills - They chill all along the Chamberlain Hills part of Forum Drive as well as the Chamberlain Hills skatepark and baseball pitch - They’re mainly at war with OCB but also ESB - Very active at daytime and nighttime
FDF/Forum Drive Families - Eastern half/Strawberry half of Forum Drive, the 1-story houses along the street as well as the 1 project building on the Northern side or the road (the 2 project buildings on the Southern side of the road along Carson Avenue is CAF) - They chill all along the Strawberry part of Forum Drive. In-between a Salon and a Mexican in an alley on the North side of Strawberry Avenue close to were it meets Innocence Boulevard as well as the car park to the Mexican restaurant here too. In an alley to the South side of Innocence Boulevard close to wear it meets with Carson’s Avenue opposite Power Street - In the story we learn they’re a new set who broke away from the CGF set, created by Franklin and Lamar - They’re mainly at war with ESB but also OCB - Mainly active at nighttime
CAF/Carson Avenue Families - Carson Avenue, in both Strawberry and Chamberlain Hills. They’re from the 4 project buildings along Carson Avenue (2 either side), in-between Forum Drive and Strawberry Avenue - They mainly chill in the alleyway in-between their two project buildings on the Southern half of Carson Avenue and in the alleyway behind their two project buildings on the Strawberry side of Carson Avenue, as well as on the walls on the Chamberlain Hills side of Carson Avenue and on the Strawberry Side of Carson Avenue outside the ‘Tahitian’ on the corner where Carson Avenue and Strawberry Avenue meet - A gang attack happens in one of the project buildings on the Chamberlain Hills side of Carson Avenue - They’re at war with both OCB and ESB but don’t bang that much - Mainly active at nighttime and rarely active at daytime
DNF/Davis Neighbourhood Families ^ - Originally from Davis, they don’t chill there due to Ballas taking over the whole neighbourhood - They chill at other Families set hangout spots, and are distinct due to wearing grey, black and white clothing which often says Davis or Dust Devils on it and not really repping green - The only reason we know they’re Davis Families is because of the director mode has them as Davis Families alongside Chamberlain Families and Forum Drive Families, although they don’t spawn naturally in Davis - They’re mainly at war with OCB but also ESB
Theory of why they aren’t in Davis and where they moved to: - There are no blocks in Davis which the ESB and OCB don’t claim, meaning they can’t really live in Davis anymore, so here is a theory of where they moved to - DNF was the new generation of the Grove Street Families. The Ballas and Families had a truce, and the OCB started recruiting young teens from DNF territory but since DNF and OCB were friendly it didn’t matter, until the truce ended and all the younger members were OCB so the DNF older members had to move - They moved into 2 CGF project buildings, the ones only enterable via Strawberry Avenue or the alleyway behind it, the two buildings sandwiched between a small CGF building and a CAF building in the Chamberlain Hills neighbourhood. - CGF sanctioned them to recruit the youngsters from these buildings, however the older members who live in the buildings are a mix of CGF OG’s who always lived there and DNF OG’s who moved there
Ballas
OCB/Original Covenant Ballas - They control Southern Davis, from the 1-stories houses all along Grove Street, Covenant Avenue and Brouge Avenue until it meets Carson Avenue. - They mainly chill in the cul-de-sac but can be found chilling all along Grove Street, as well as the alleyway opposite the the West of Covenant Avenue as well as the area of Brouge Avenue in-between Covenant Avenue and Grove Street - They’re mainly at war with DNF and CGF - Very active at daytime but much more active at nighttime
ESB/East Side Ballas - They are from the 2 Davis blocks in-between Davis Avenue, Macdonald Street, Carson Avenue and Roy Lowenstein Boulevard. The Northern part of Brouge Avenue runs between their two blocks. - They mainly chill in an alleyway between a discount store and an iron worker’s, as well as outside a liquor store, both on the East side of Northern Brouge Avenue, and in an alleyway in-between 2 houses on the West side of Northern Brouge Avenue. They also spawn on the block the court is on directly North of their 2 blocks, they chill on the Northern side of Macdonald Street near the ramp paving as well as along Davis Avenue on this block. - This set is largely nocturnal and rarely spawns outside or night hours - They’re mainly at war with FDF and CAF but also DNF and CGF - Only active at nighttime
SRB/South Rancho Ballas ^ - They chill at other Balla hangouts, and can be identified as they often wear clothing says Rancho, also they’re the only Balla set to wear biker helmets, durags, baggy vests and/or hoodies (the other sets wear tight vests, baggy shirts, caps, varsity jackets and/or bandanas) - So if you see a Balla that has a biker helmet, durag, hoodie and/or baggy vest it’s a SRB member - The only reason we know they’re South Rancho Ballas is because the director mode has them as South Rancho Ballas alongside East Ballas and OC Ballas, although they don’t spawn naturally in Rancho - They’re mainly at war with OLSV and NSV
Theory of why they aren’t in Rancho: - I’m assuming they’re from South Roy Lowenstein Boulevard, from the the 1-storey houses on the 2 Rancho blocks that run along Roy Lowenstein Boulevard in-between Dutch London Street and Macdonald Street - However only they’re only from the Western part of these blocks from the 1-story houses which face the Roy Lowenstein Boulevard. SRB don’t spawn there due to being close to Vagos territory - It makes sense for them to be here, as these are the only parts of South Rancho where Vagos don’t spawn - The Eastern halves of these two Blocks which run through Jamestown Street belong to the Vagos, with their members coming from the 1-storey houses on these blocks which face Jamestown Street
GSB/Grove Street Ballas OR DZB/Dead Zone Ballas &amp; WSB/West Side Ballas - These aren’t real sets, but I made it up if any of you wanna roleplay as if there are extra Balla sets - They are sets that broke away from OCB with their permission due to becoming bigger than the set that originally recruited them - If you use GSB: They are the ones along all of Grove Street, and they broke away from OCB due to being bigger than the set which recruited them which is OCB - if you use DZB and WSB: The backstory is OCB made sure Grove Street was split in two, so they would remain the strongest and biggest Balla set - If you choose to roleplay with DZB and WSB as sets, then DZB members would be the ones chilling in the Cul-De-Sac and WSB members would be the ones chilling in West Grove Street - Brouge Avenue’s centre-line is what splits Grove Street in half - OCB members are now only the ones chilling in the alleyway opposite Covenant Avenue as well as the Southern part of Brouge Avenue between Covenant Avenue and Grove Street. - OCB chill close on their border with Grove Street since it’s safer than chilling along Covenant Avenue - DZB very active both daytime and nighttime, WSB active at daytime and very active at nighttime
Vagos
OLSV/Original Los Santos Vagos - They are from South Jamestown Street in Rancho (the area of the street in-between Carson Avenue and Dutch London Street) from the Rancho Projects on the east side of the road and the 1-story houses on the west side of the road - They don’t control the entire block opposite West of Rancho Projects, just the East Half facing Jamestown Street, as the West half of this block which faces Roy Lowenstein Boulevard is where SRB members are from - They chill all along their part of Jamestown Street in between Carson’s Avenue and Dutch London Street on both sides - They’re at war with SRB - Very active at both daytime and nighttime
NSV/North Side Vagos - they’re from the 4 blocks full of 1-story Houses in Rancho, in-between Innocence Boulevard, Roy Lowenstein Boulevard, Little Bighorn Avenue and Carson Avenue (with Jamestown Street and Macdonald Street running through their blocks) - They only control half of the block in-between Carson Avenue and Macdonald Street, the half which faces Jamestown Street. SRB are from the half which faces the Roy Lowenstein Boulevard. - They mainly chill along on Jamestown Street in-between the 2 Southern blocks of their territory, but also chill in the alleyways of the 2 Northern blocks too - They’re at war with LVA and SRB - Active at daytime rarely, mostly active at nighttime
ESV/East Side Vagos - They are from around the Cypress Flats area, along Orchardvile Avenue in-between Innocence Boulevard and Dry Dock Street - They chill along Orchardvile Avenue in-between Innocence Boulevard and Dry Dock Street, as well as in an alleyway on the South side of Innocence Boulevard in-between south Shambles Street and Orchardvile Avenue - They’re a very active set, spawning in Cypress Flats for 2 gang attacks (the Railyards in the South of Cypress Flats and Steel Foundry in the North of Cypress Flats) as well as at the El Burro Heights Scrapyard, and spawning in large numbers on their turf chilling - There is no residential housing or buildings in the neighbourhood except for one 5-story block of flats at the Northern-tip of South Shambles Street it seems, so it’s possible some of the warehouses were converted into flats which is possible since all the business are shut and the area is only filled with ESV and pedestrians - They’re at war with OMBG - Very active at both daytime and nighttime
Marabunta Grande
OMBG/Original Marabunta Grande - They are from El Burro Heights, in-between Amarillo Way and El Rancho Boulevard, from the one story houses of Amarillo Vista and Fudge Lane, chilling at Fudge Lane - They don’t spawn in Online, likely due to being pressured constantly by ESV, an extremely active set who they beef with from the Cypress Flats - They’re at war with ESV - They’re not active in Online, only in Storymode
SVMB/South Vespucci Marabunta Grande - They’re from South Vespucci, from 4 blocks either side of Melanoma Street (in-between Bay City Avenue and Goma Street) - Their territory consists of serval small 2-story and 3-story flat buildings - They chill near the alleyway on the South side of Melanoma Street and are the same group which appear in the gang attack at Vespucci Canals - They’re in conflict with the Armenian Mob, Chinese Mob and Korean Mob due to be territorial and dangerous - They’re at war with the Armenian Mob, Korean Mob and Chinese Mob, being the main reason these mobsters don’t chill on their blocks/turf - They don’t chill near the flat buildings in Online, instead they only appear for a gang attack in the Vespucci Canals, where they’re highly armed and in big numbers
EVMB/East Vinewood Marabunta Grande - The group that chills in the sewers under the bridges that take you from the Casino Car Park to Mirror Park - They’re from the houses and flats on the 3 blocks either side of York Street and Tangerine Street - Although it’s in Vinewood in a nice neighbourhood, the area where they stem from is fairly gritty, consisting of small flat buildings and 1-story ghetto houses, as well as businesses such as a motel, taxi hq and a laundromat for example, most look like struggling business, with the area being a baby ghetto inside a nice neighbourhood - They likely have to chill in the sewers so they aren’t too close to the East Vinewood Lost MC Clubhouse - They’re possibly at war with the Lost MC - They are the only Mara set found in free roam in Online (outside gang attacks and missions) - They’re only active at nighttime
Lost MC
They don’t have sets but have 4 hangouts Stab City is home of the Blaine County Chapter and East Vinewood is home to the LS Chapter

The clubhouse East of the Casino car park
The Hookies restaurant at North Chumash (Most likely a front for money laundering)
The Stab City Trailer Park
R L Hunter and Sons business (The few buildings southwest of the Grapeseed Airstrip, also most likely a front for money laundering)

Gangs/Mobs with no territory
VLA/Varrrios Los Aztecas - One set/block block which is North of the compound, East of the hospital and West of the railway tracks - They chill mainly on this block, mainly standing outside the theatre and the block of flats here - They don’t spawn in Online free-roam, although they’re still active (their block is always surrounded by drug-addicts and prostitutes during night time hours, so they’re mainly just trappings and pimping and aren’t banging these days) - They likely can’t post outside their flats due to being too close to the NSV blocks - They can also be seen in free-roam via the MC contract called gun-running where they’re in an arms trade with the Lost MC and Italian Mafia
Armenian Mob - They own and run the scrapyard as a front for money laundering - They only chill at the scrapyard - They don’t spawn in Online, likely due to the Maras, a very violent and territorial gang, becoming more aggressive (posting in the Vespucci Canals for gang attacks with heavy weaponry and high numbers) - South Arsenal Street which runs along the length of the scrapyard is always filled with prostitutes, implying they’re pimps even though they don’t spawn there much in Online
Chinese Mob/Triads - From the block on the West side of Ginger Street in Little Seoul across the road from the car wash and convenience store - They mainly chill on and around the stairs of this block, and share their territory with the Kkangpae who sometimes spawn here - They don’t spawn in online, likely due to the Maras becoming more aggressive (posting in the Vespucci Canals for gang attacks with heavy weaponry and high numbers) - A few prostitutes spawn outside their flats suggesting they’re pimps even though they don’t spawn there much in Online
Korean Mob/Kkangpae - From the block on the West side of Ginger Street in Little Seoul across the road from the car wash and convenience store - They mainly chill on and around the stairs of this block, and share their territory with the Triads who sometimes spawn here - They don’t spawn in online, likely due to the Maras becoming more aggressive (posting in the Vespucci Canals for gang attacks with heavy weaponry and high numbers) - A few prostitutes spawn outside their flats suggesting they’re pimping even though they don’t spawn there much in Online
Italian Mob/Bonelli Mafia Family - They don’t spawn in free-roam except for 1 Biker mission (other than this they are only in 1 story mode mission) - In the story mode mission we learn that they own most of LS’s construction sites - They appear to be allied with the Professionals, or they are at least hiring them, as they appear at a lot of gang attacks on construction sites, including the site where the story mode mission takes place
Martin Madrazo’s Mexican Cartel - They guard Martin Madrazo’s Ranch which is called La Fuente Blanca - This is where they chill - They’re a Mexican Cartel led and run by Martin Madrazo
El Rubio’s Colombian Cartel - They are on Cayo Perico, which is El Rubio’s island which is only visitable during the Heist there - Members can also spawn in free-roam for a random event, where they’re drunk and where you can find a key for an El Rubio Office, although if you already have the key you will just find cash
Duggan Crime Family - Texan Crime Family which now owns the Casino - The appear in the Casino Penthouse missions and Casino Heist
Key: Chill on the turf of other sets = ^

Hello people of gta6, this is something I've been working on for a while now, it's my ideal concept for Rockstar Games' future title, Grand Theft Auto VI.
This is a long post however, you have been forewarned.
So, with all that being said, hope you guys enjoy it!
Let's begin with an overview:
Grand Theft Auto VI is the biggest Rockstar title yet, approached with the most advanced systems ever. GTA VI will be released on Xbox Series X, PS5, and PC only, with the online mode (more on that in the next part) releasing a month after release. The game itself takes place in 3 key locations (technically 4):

Vice City (Expanded and Enhanced), in the fictional state of Flores (based off Florida)
Carcer City, in the fictional state of Garrison (based off Detroit, Philadelphia, and Chicago)
The People's Republic of Del Castillo (Based off of Cuba and Brazil, respectively)
Liberty City (VERY linear, certain portions of story playable)

Vice City:

Vice City has been greatly expanded, and now includes 2 other key locations based off of Orlando and Tampa: Mamba and Paxville. Paxville is based off of Orlando, and includes 2 different theme parks: Fun-World & AnimalDome (both based off Disney World/Universal Studios and SeaWorld).
Fun-World is a one-stop shop for having the most fun you can have. From fun-rides to the weird candy the man near the entrance sells, players can ride rollercoasters, take pictures with mascots, and do side-missions from the management and employees of Fun-World.
AnimalDome is a bit more based on SeaWorld and appeals to players that want animals in the game, whether in hunting, fishing, or even exploring. A new side-activity you can do is hunt for legendary animals (all across the map) and donate them to AnimalDome for rewards. It ranges from lost fish in lakes and oceans near untouched waterfalls, all the way to rare birds in forests alike.
The landscapes such as the marshlands are similar to Bayou N.W.A from RDR2, with alligators and crocodiles alike in wetlands, with many other secrets to uncover.
One key icon is the Gator Chain, which is based off the real life Florida Keys, 8 islands pulled together by a single highway.
Another key icon is the Green Pastures, which is based off of the real life Everglades, a subtropical wetland in the heart of south Florida, filled with all kinds of natural society.
A new air force base, Fort Kayak, is also included within the state as well.

Carcer City:

The newest addition to the series, Carcer City is supposed to be gloomy and dark, that of rivaling Vice City's vibrant feeling with the lights shining at night. The roads are narrow and sleek, and are very easy to get lost in because of the grid zig-zag layout. At day, you find old factories blowing out dark smoke, with lower class people getting ready to go work in their old crusty cars. The feeling heavily changes at night when you find the darker parts of the city emerged. Get yourself downtown and on rooftops of buildings, you'll find yourself feeling like Batman looking down at all of Gotham City.

The People's Republic of Del Castillo:

This is solely an island based on the likes of Guarma. On one side, you have favelas in a small, compact, linear city with a mini-airstrip for an airport, while it slowly moves onto tropical forests on the other side of the island. Free roaming is fine, but be careful as there are others who are watching you. Be aware at all times no matter what.
As for Liberty City, a small portion is only playable for certain missions only, incredibly linear.

Gameplay:

The gameplay is similar to that of a mix between IV/V (realism and arcadey-ness). The car feeling is similar to IV when crashing and whatnot, but also contains elements of V's driving. Interaction with NPCs is more realistic and grounded. Walk around in a suit and people ask if you have somewhere important to be, walk around in punk clothing and get trash thrown at you. Red Dead Redemption 2's interaction system with NPCs returns with a new change: multiple dialogue options. Say you choose to greet an NPC and ask if they need help with anything. They might say yes and you could be given with two choices: a) "Sure, I'll help out!" or b) "Alright, well, hope it gets done then!".
You can choose the way the characters are. Aside from antagonizing NPCs, you can pave a path for these characters depending on the way you want.
Wanted levels return, as well as the 6th star. Here is the new way the wanted system would react when given stars:

1 Star: Cops Chase You, Ram into Vehicle if needed. Given a ticket ($25, $50, $75, $100, or $125) depending on what the charges were, and the star is dropped.
2 Star: Cops use tasers, use batons and whatnot to attack. You can get "Busted" if they catch you.
3 Star: Angry Cops chase you and try to take you down, no exceptions.
4 Star: Same as 3 stars except more cops are deployed and more aggression is applied.
5 Star: NOOSE deployed.
6 Star: Military and State-Guard deployed, locking off all airports (unless broken into or in the air already). Very hard to survive.

A new gameplay experience that is added is backpacks or duffel bags. This will not be realistic in the sense where it will weigh down your character and slow them down. You can store different things in either one now, whether it be snacks for refilling health, armor, or other materials you can find. You can find collectibles across the map and store them in there.
Another returning feature is the stats: energy, driving, and flying. Energy encompasses the other stats such as stamina, strength, etc. The more energy you can max out, the more stamina and more health you have. Driving and flying are the same as before.

Story:

In terms of story, I think Project Americas' narrative based off of the leaks seem very interesting, and also makes for interesting scenarios gameplay-wise during the smuggling missions. Another feature I 100% want back is heists. They were done amazingly in V with their setups and then finales where you had somewhat of a variety was fun for the replay ability. The same can also be said for the Diamond Casino And Resort Heist and its diverse offerings.
For characters, in terms of playable ones, I would enjoy seeing 2 protagonists this time around, maybe a male and female if possible.
The game could end with 3 endings, one where our characters become enemies, one where they remain neutral (friends), and one where they begin a relationship or something like that.
Other characters could be possibly a funny crooked lawyer (think Saul Goodman), maybe another Phil Cassidy-esque character as well if we're heading back to Vice (IF that is).

Last Topic, Time Period (?):

So, this is the big one. I'm having some trouble picking what time period might fit well for my ideal game.
Normally, I would say the 1980s, but even then some people wouldn't really enjoy it, so I decided to take a look at past games and see where this game might fit well in terms of time period:

GTA lll (2001): 2000s (2001 specifically)
Vice City (2002): 1980s (1986 specifically)
San Andreas (2004): 1990s (1992 specifically)
IV (2008): 2000s (2008 specifically)
V (2013): 2010s (2013 specifically)
Online (2013-2020): 2010s - 2020s (Specifically unknown, speculated 2020)

With this being said, I think one time period that could totally work is the 2000s, but instead of 2008 like IV or 2001, I say mid 2000s: somewhere around 2004 - 2006, with some flashback missions dating back to the 1980s (1984, 1987, or 1989).
Now, the internet as we know it wasn't fully developed like how it is today, but it was still actively rising. Funny internet videos and downloading was the norm during that time. Rockstar, with its satire can actively parody the internet as it did with IV and V.
Instead of using the internet to buy cars, players now actively have to go to dealerships, each with their own specific kind of cars (legendary motorsport with their fancy cars, warstock with heavy vehicles, etc).
Now, for the flashback missions. Thinking realistically, it's almost impossible for Rockstar to create different models and whatnot for two different eras.
Now, what I PERSONALLY can see Rockstar doing, if they do decide to go down the flashback route, I can definitely see them create a VERY linear mission-design for a small portion of the map where a mission takes place, and changing some of the buildings and billboards to fit the era (in this case, the 1980s).
For example, take Vice City for example. There could be a portion of the city where the buildings are abandoned, roads are cracked up, etc. There could be a story mission where it takes place in 1984, in that exact portion of the city, where the roads are freshly paved, and the buildings are lively and booming.
RDR2's jump from 1899 to 1907 is justified, in the sense that most of the map is just environments without as many buildings as GTA.
So yeah, that's about it. Hopefully you guys enjoyed it, I have some more stuff on the way!
If you like to add some new ideas to the existing ones or add on ideas in general, please do so.

Hi there, so I platinumed GTAV a while ago and I ranked them based on difficulty, how long they took, and just generally how fun they were to achieve. This also is kind of a walkthrough of some sorts and includes tips for some of the more difficult ones. Oh and keep in mind that this is just my opinion, some trophies can be achieved easier by other people.
And there is some swearing in this, but that shouldn't be a concern considering this is talking about GTAV Pick option C at the end of the game so you don't miss any achievements

Pimp my sidearm- works on any gun, recommend beating the game and then fully mod a pistol for the cheapest results.
Los santos customs- beat the game and take franklins car (trust me, do franklin's car) and go to a Los Santos customs and buy every option
A lot of cheddar- When you finish the game go to one of the stock websites and purchase every stock you can, which means you should be able to purchase 40 million worth of stocks at a time, do this until you unlock the achievement. This should take around 2 minutes.
Out of your depth- Purchase a boat or call a taxi (if you do the taxi achievement before this one the taxi skips are free) and go to the ocean, drive or swim to the very end and swim down to find a shark, annoy the shark so he will kill you. Depending on how you do it should only take around 5-15 minutes.
Off the plane- nothing needed to be said here, just complete it.
Clean sweep- Just stay behind cover and purchase snacks and body armor, and use a gun like a pump shotgun or a one-shot weapon, such as the revolver.
Trading pure alpha- you can do this anytime within the game, just purchase a stock and then kill yourself repeatedly until next to your stocks a green arrow pointing up appears, sell it and you should get the achievement. Can take up to 5 minutes if stock prices don't go up quickly.
Three-man army- Play as franklin and call Micheal and Trevor and pick them up, get a wanted level and stay in your car, kill a cop so you can get 3 stars, and start driving away but still have the cops on your ass. Do this for 3 minutes and you should get the achievement easily. Make sure your car has some armor upgrades though.
Alls fare in love and war- After beating the mission Mr.Philips you are able to purchase businesses when you're able to play as franklin purchase the taxi business for 200k and then you should get a call after a while, do the job and you should get the achievement. The missions themselves don't take a long time, maybe around 5-10 minutes, if you don't get the achievement to try to do another one.
Red mist- After completing the Trevor Philips industries mission this will just look like standard strangers and freaks, complete it, and then the others should pop up after you finish the one before. Complete all 5 and you should get the achievement. Can take up to 30 minutes to an hour if you're not good at it, I recommend trying to get the gold for all these for another achievement.
Altruist acolyte- There are certain markers that will appear as you get close to them, play as Trevor and go to the "Domestic" random event, there are a few closer to the location such as the hitch lifts but I wasn't able to spawn them. Drive to the cult and you should get the achievement after the cutscene. Took me around 10 minutes if you use the domestic random event.
Wanted: Dead or alive: This will also appear as Trevor strangers and freaks, after doing it you will get an email giving a picture of where he should be hidden, you can search it up on youtube as I did and capture him, don't kill the target no matter what, deliver him to Maude and you should unlock the achievement. Took around 10 minutes.
Kifflom! Play as Micheal and go to the Epsilon Program website, and pay the 1000 dollars to start this, I recommend using another guide for this but whenever you need to do something like wear the robe for 5 days just go to Michael's house and sleep until you are able to go on another mission, and when you need to walk around the desert for 5 miles just walk in a circle. this can take up to 3 hours if not done correctly.
San Andreas sightseer- Purchase a helicopter for the quickest results but can be done using a car or a boat. Travel around and get 95% of the map uncovered, you can tell if it's uncovered by it being transparent, meaning you can see through the map. The reason why I recommend a helicopter is you also need to uncover the ocean as well, which can be done with a boat but the helicopter is faster, you can either steal one or purchase a helicopter hangar and a helicopter. Took around 5 minutes because I already had a lot of the map uncovered.
Multi-disciplined- You'll need to get a single gold in only one of the shooting range challenges, triathlon, a flight school lesson, a sea race, a street race (which only franklin can do), and an off-road race. Complete all of them anyway for 100% achievement. This can take up to 30 minutes to an hour if you aren't able to gold one.
TP Industries arm race- After beating the mission Mr.Philips you need to purchase the hangar after beating the mission, it should cost 100,000 dollars. You get a special marker for the dune buggy and the airplane, there are 10 in total, 5 for the dune buggy (which is mainly just collecting supplies) and another 5 for the airplane (which is also mainly just supply drops) After doing the two quick save your game and reload it for the two missions to spawn. Can take up to an hour if doing the quick save method.
Crew cut- To easily finish this you either need to make a crew for a friend to join or join a friends crew

and play a contact mission with them to get the achievement.

A new perspective- Just leave one of the characters in the first person and just wait for the 15 hours or play some of

the story in the first person, I just recommend leaving it on overnight.

Calling digits- reach rank 20 and have 5000 dollars, call up Merryweather and ask for a backup helicopter.

20- stick up kid- rob every store on the map, can take up to an hour depending on how fast you move to each store.
21- enjoy your stay- for this achievement you need to play golf, play tennis, play darts, arm-wrestle,
win a shooting range challenge, rob a store, buy a lap dance, buy any clothes, buy a tattoo and change your hairstyle. Make sure you win or lose the sports activities because if your teammate leaves in the middle of the match it won't count.

Three-bit gangster- Pretty simple since ranking up is easy, just play 3x or 2x events or contact missions for the best RP. Can take up to an hour or two.
American dream- You're most likely going to need at least 1,000,000 dollars for everything, grind the 3x or 2x event or play heists for money.
4-bit gangster- Same as a Three-bit gangster but more grinding is required. Can take up to 5 hours of pure grind.
Full refund- After rank 50 have a friend call Lamar so he can call a thief on you, kill the thief and take back your money. Takes around 5 minutes.
The midnight club- You can have a friend let you win 5 races by going to the menu-jobs-races and then

invite your friend and have you win 5 with a custom vehicle, depending on the map you play on
(I recommend taxiing, takes around 2 minutes to complete it) this can take up to 10-30 minutes.

Backseat driver- Do this with a friend, wait for people to join or join a rally race, and then guide them through the map. Once again I recommend making the rally race so you can play on a map you are familiar with.
Run like the wind- I did this in a solo match, I stole a car, got a bounty, and survived a GTA day (which is around 48 minutes) Move around and don't get kicked, you can die by anything but another player. You can do this with a friend where they have Lester give you a bounty.
Show off- Use an upgraded vehicle (preferably franklin's personal car) and search up a guide for all locations, ill put a link to the guide I used in the description, while most are easy 10 of them are a complete bitch, and took me around 15 minutes just to do one of them because of the requirements. This can take up to 3-5 hours.
From beyond the stars/a mystery solved- I can't really decide on which one is harder so I will group them up into one, both took me around 3 hours to do since there are so many. You can use the rockstar social club website or use a guide on YouTube as I did.
Waste management- After the second heist Micheal or Trevor and purchase the old dock for around 250,000 dollars, while it can be confusing just follow the dot on the map. Took me around 2 hours to do.
Close shave- Look up a guide, it's pretty much required for this. Buy the buzzard helicopter for the under the bridge and keep in mind not to do too much damage to your helicopter or it won't count, while most recommend stealing a jet from fort zancuddo I instead bought the mallard for 250,000. Took me around 3-4 hours.
Decorated- In GTA online there are certain rewards for doing certain things such as killing people with a pistol a certain amount of times, every single platinum that I earned were headshot kills, sniper kills (not sure how to be honest) Kill people using melee weapons, kill people using sticky grenades, kill players in GTA online, kill psycho's (I recommend doing most of these in deathmatches) win 10 waves of survival, (it's painful and achievement on its own), rob 20 stores which is also an achievement, pay for 25 lap dances (all you need to do is pay for the dance and then exit it) buy 25 haircuts, have a friend drive you around for a few hours (sit in a car with your friend in it, pretty simple one) Flippin hell (go to a stunt race with a flying car, get high in the air and do the flips) steal vehicles (pretty simple) Achieve the fastest lap in a race (can be done with a friend) land jumps 300 feet in a road vehicles win every deathmatch and race mode (can be done with a friend) participate in 25 races, buy 25 pieces of clothes (just buy 25 shirts) get the most kills in a 4 player survival (not too hard unless you camp all game, can be done with a friend) get the most kills in a gang attack (also can be done with a friend) shoot cop choppers down (when you get 3 stars start shooting the choppers down with a homing missile) win every race mode at least once (needed for 2 achievements) get a tattoo on every body part, win a race in a custom vehicle (needed for achievement anyways) wheelie for over 2000 feet (I don't remember getting this one, but the best way is to do it at the airport) Activate a 2 person key switch (I did this on the diamond casino heist) Complete the fleeca heist finale, do the aggressive approach on the diamond casino heist and earn 1,000,000 dollars and use the elevator on the diamond casino heist.
Solid gold, baby!- Do the heist setups and the strangers and freaks, every mission and strangers and freaks I got a gold in (not including prologue) was

Franklin and Lamar, Complications, Fatheson, marriage counseling, friend request, chop, the long stretch, daddy's little girl, the good husband, carbon rifles, Mr.Philips, Trevor Philips industries, Deadman walking, did somebody say yoga, by the book, Tow truck, boiler suits, masks, The multitarget assassination, Mr.Richards, Hang ten, Fresh meat, The ballad of Rocco, reuniting the family, Architects plans, doting dad, fire truck, meltdown, stingers, every gauntlet, something sensible, the times come, every Pulling favors, every rampage, shift work, Grassroots Micheal, grassroots the drag, Paparazzo, paparazzo the sex tape, Paparazzo the highness, every vinewood souvenirs expect Al Di Napoli, Exercising demons-franklin, liquidy risk, minute man blues, exercising demons Micheal and Trevor, targeted risk, uncalculated risk, a starlet in vinewood, chasing the truth, the last one, delivering the truth.
I may have missed a few but those were the ones I counted, this can take up to 5-10 hours unless if you already have quite a few on gold. You don't have to do every single challenge at once, so you can try to beat the level as fast a possible, reload it and try to get as many headshots as required for example.

Career criminal- This one requires pure fucking grind, let me tell you everything I did for the 100% completion. for hobbies and pastimes, I did Stunt plane time trials, 3 medals in every shooting range challenge, won every race (meaning offroad, street, and sea,) won every sport, got par or under in golf (getting par or under is required,) Bail bonds quarry and farm, every flight school mission, every arms traffic race (required for an achievement anyways,) got a private strip club dance, hunting, yoga and parachuting. Only franklin's strangers and freaks are required, my random events were the ATM robbery, Bike theft 1, construction accident, gang imitation, mugging 1, 2, and 3, security van 3, 4, and 6, sportbike theft, a countryside gang fight, a deal went wrong, and the drunk driver. To find out the spawn points of the random events go to the rockstar social club. All 30 misc were buying a haircut, weapon, any clothing, a car mod, a tattoo, and 5 properties, a vehicle from a website, ride the cable car, use the car wash, go on the rollercoaster, friend activities (meaning call up Micheal, Trevor, or franklin as any of the 3 characters) Visit the cinema, bar, play tennis, darts, golf, go to a strip club, 25 stunt jumps, 8 knife flights, rob a store, purchase stocks, watch T.V. (do at Micheals) complete a booty call (Play as Trevor in a strip club and get one of the girls like the bar to the max and drive them to their apartment) 25 under the bridge, walk and play fetch with chop, get 30 submarine pieces (one of Micheal's strangers and freaks) 30 nuclear waste (it's an achievement anyway) get all 50 spaceship parts and letter scraps (both achievements.) This can take up to 10-20 hours, it's a fucking pain.
Unnatural selection- Holy shit, this took me so fucking long to do, me and 2 other friends grinded for 10 hours straight and couldn't even beat it. Buy max snacks and body armor and the best map to do is the nuclear silo,

there is a certain hiding spot near the stairs and the stairwell that if you hide behind it's super difficult to get shot unless you peak for too long. Use the combat MG, does a lot of damage and can shred through enemy health, be careful at the beginning when getting health and armor not to be out for too long for else you will lose all your health and maybe even die. This took me prolly around 10-30 hours to complete.

Above the law- This requires so much god damn grinding that I grinded for 3 days straight, I started grinding hard on level 67 and got to level 100 by doing the 3x event "Target assault race" But by the 3rd day, it was this stupid deathmatch where if you die you can come back to life by an enemy dying or some shit, heists are also good ways of gaining RP, and heist setups too. this took me around 10-20 hours to complete starting from rank 67.
Numero Uno, the requirements for this achievement is to win a single Bike, Land, Sea, Air, Rally, and GTA-Race, win a Deathmatch, Team-DM, Gang-Attack, and Survival (10 rounds), and win Arm Wrestling, Darts, Parachuting, Golf, Tennis and Shooting Range. So not only do you need to complete the survival bullshit but more on top of it, now everything but a rally race, team deathmatch, and survival you can boost with a friend. But even then this still took me around 10-40 hours to complete due to the fucking survival bullshit.

–This is a guide mostly for new players. I'm sure anyone whose been playing this game for a few years knows all this–
I started playing GTA online roughly two months ago and I already have practically everything I wanted, just from grinding the casino heist over and over again.
It can get tedious, sure, but so can everything else in life. You just have to have a positive mindset and think of the reward at the end– all the jets, planes, cars, bikes, clothes etc...! PLUS I personally find the preps a lot more enjoyable than doing sell missions for the bunker or doing import/export over and over.
I'm doing this on mobile, so please excuse any formatting errors :)
Note– doing this with two people is always the most optimal way to make money. Give yourself a huge cut. You deserve it for doing all the preps.
•step one: buy an arcade in Las Santos. Don't buy the one in Paleto Bay because that long drive to the casino will drive you crazy if you do it enough.
•step two: do all your prep works/setups in an invite only session. Trust me, it makes life so much easier when you're not bring chased by an oppressor all the time.
•step three: you can shuffle the contents you get in the vault. –NOTE THAT YOU CAN ONLY DO THIS IF YOU HAVE ALREADY COMPLETED ALL THREE HEIST APPROACHES–. YOU DO NOT WANT CASH. Art is better than gold (in my opinion) purely because it's very easy to do with two people... meaning you can keep a much bigger cut for yourself. Gold is awesome, but I'll talk about that in a bit.
•step three (b): to shuffle the vault contents and try to get something other than cash; simply do the vault contents prep. When you go to the casino and access the security camera feed, find the camera which reveals what's inside the vault. If you get art or gold, perfect! If you get cash, identify the target and wait for Lester to stop talking. Back out of the camera and then call Lester. Cancel the heist BEFORE you leave the casino. Leave the casino and go to your arcade. You will then have to pay another 25,000 to setup the heist again. When you pay, you will notice that a target has already been identified and there's a chance that this target will be different to what you already had. It's random so you may have to do it again. If you get cash again, go outside, cancel the heist again, restart your system, setup the heist again and repeat the previous steps until you get a better target than cash :)
•step four: always choose either aggressive or the Gruppe Sechs approach. Silent and sneaky with randoms is a nightmare abs it's not worth the frustration. Only do silent and sneaky with friends or people with mics
•step five: in order to even unlock the Gruppe Sechs approach, you have to first do the scoping out prep. Go to the sewer tunnel entrance that's closest to the casino. Go down the tunnel and look to your right. You will see a large semi-circular shaped get made of steel poles. Take a picture of it and send it to Lester. This will unlock the group Sechs approach!
•step five (b): always pick the cheapest gunman, the cheapest car guy and the best hacker. The best hacker you can get is AVI and to unlock him, you have to destroy all the signal jammers around the city.
•step six: there are optional preps. Some you can always skip and some you should absolutely do. You should ALWAYS get the level 2 keycards because if not, you will have to deal with that awful hacking minigame involving circles. Save yourself the headache of dealing with it and always do that prep. There's no point in getting the masks for any approach.
•step six (b): If you are doing the aggressive approach, I would highly recommend doing the enhanced body armour prep, Duggan's shipments and the level 2 keycard prep. You can skip everything else that isn't mandatory. The enhanced body armour will make your life so much easier... trust me. Doing Duggan Shipments and getting all 10 will makes the guards extremely easy to kill and will give them weak weapons.
step six (c): for the Gruppe Sechs approach, I would recommend doing the level two keycards and getting the exit disguise. I personally recommend going for the firefighter outfits because they're easier to get OR if you have the time, you can collect 54 playing cards, unlock the high roller outfits and you can use those as an exit disguise instead. They'll be permanently unlocked, meaning you can skip the exit disguise in future if you have it. Those are really the only optional preps you need. Patrol routes might seem important, but it's not.
step seven: when you're finished in the vault, always exit through the staff entrance. This will leave you in a position with the least amount of noose and the best position to escape from and to get to your getaway vehicles.
step eight: get in any vehicle you can find. Doesn't have to be your getaway vehicles. Drive to the police station that's near the casino, climb to the roof and get in the helicopter. It's the fastest way to your destination and to lose the cops. To see a tutorial of how to do this, there a tonne of guides on YouTube :)
step nine: you're done! You just completed the heist. Now you have to wait about 5 to 10 minutes to receive a call or text from Lester, suggesting you to do the heist again. Now, just do all steps again and you can easily make 2-3 million in about three or four hours.
If I'm missing anything, please let me know :)

Just started gta online on my PC, and need some cash to get me up in the world, anyone have any heists or jobs that need doing, I'm very skilled at big con and aggressive casino heist

With the announcement of a Holiday 2020 heist update that includes an entirely new location,i have decided to finally post one of my heist concepts that would include a map expansion.
GTA Online "Operation Free Lester" is a new Prison Break Heist that is a sequel to all story mode events and GTAOnline heists,including Casino Heist. The Diamond Casino and Resorts Update has proven that Option C in Story Mode is canon.
Free Lester Storyline: Ms. Cheng has tipped out the police about Lesters past involving taking part in multiple heists but also being involved in Ms. Chengs fathers death. Your job will be to rescue Lester out of a new highly secured prison that is located on a island near Paleto Pay. The Prison is connected with only 2 bridges,one for entry and the other one for exit. It also has some sewer canals where you can cut with a laser through. And the prison also has some helicopter landing pads.
The Prison is supposed to be a gta version of Alcatraz Island.
The Heist works in the same way as the Casino Heist: You prep the heist how you want it to be prepped and then do the finale with 1-3 other players.
The Heist would include 3 main approaches: Aggressive,Big Con,Silent and Sneaky.
Those main approaches would be seperated in subapproaches: Land,Sea and Air.
Silent and Sneaky for example would work well by going through Sea by having a Stromberg,going through the canals,rescuing Lester quietly and escaping with him by using the Stromberg. Meanwhile aggressive would work well with Land or Air,having heavy resistance against cops coming from the bridge such as having an Insurgent Pickup ready to escort Lester or rather having a Hunter for the air approach.
The players would be able to freely do the heist how they want. 2 players could wait outside,making sure the police reinforcement doesn't make it to the prison while 2 others can go through the prison and rescue Lester. Or all 4 go in together but would have to deal with police reinforcement coming into the prison.
The prison would not have any loading screens. The interior would be like a shop,you can walk through the doors but also hack some doors including Lesters cell. This would make the Prison Break more smooth and gives the player more freedom so the game won't teleport them somewhere when someone else enters the building.
The payout would be 3.4Million split between all. On hard you'll get 10% more. There is no value loss to the payout. The setup fee would consist of $100,000.
That's all for the concept. I sadly have no idea for vehicles but it would be nice having a new bulletproof or resistant car. Maybe also a stealth car or plane?
Thanks for reading :)

It is my first time composing a guide like this for GTA Online. So any criticism or suggestion is welcome! I really wish this can be helpful. There is a ton of wiki about it but I am just going to refine them into my own words.
Btw, this guide is not for people who is already a veteran. Casino heist is the easiest way to make a quick fortune so far because you can join a finale through your phone (although there is a cool down time between each). And you probably won't find any extreme method to maximize payout such as glitch. The main purpose of this article is help people have fun.
Scope Out
This is something you do once and for all. So there is no reason why you don't scope out all access points and P.O.I.. You can launch this mission every time when you are hosting the heist, but can only be done before selecting approach. There is plenty of Youtube videos about where to find them such as this.
Vault Content
Just to to the observatory and find 2 guys chatting. Sometimes they are at the front door but most of the time they are on the left side of building. One guy with a baseball cap and the other "bigger" guy with a cowboy hat. Start hacking through securoserv app while walk along with the guard while he takes a phone call. Don't run into or kill him cuz that will get cops on you. Hacking into security camera is easy so let's skip that (sometimes the Wi-Fi spot is in the restroom).
Casino Model & Door Security & Vault Door
All of them are complete waste of money. Casino model is purely decorative. If you want to practice hacking, just ask teammates or friends nicely to give you a shot in the vault or watch Youtube. And there is no need to practice drilling vault door because you are not on a time limit.
Before we jump into approaches, there is a prep mission called "Security Intel". It gives you all the camera vision without having to getting close to a camera. You will need to complete all Diamond Casino & Resort story missions as the host in order to unlock this mission. Once it's done, you don't have to do it again. The camera intel stays with you. JUST DO IT FOR VINCENT'S SAKE.
Prep Board
Next, I'm gonna tell you what each prep mission means and which optional missions are actually worth doing imo.

Silent & Sneaky

Gunner: Hire the cheapest guy because you are not supposed to exchange fire anyway. There are two loadouts to choose from and both works great.
Driver: Hire the cheapest guy because you don't need his help at all. This role is a fucking free rider and you will see why later. I always source Übermacht Sentinel Classic because it goes fast and handles the best. It matters in setup mission.
Hacker: Hire Paige because she gives you more time in the vault. It's worth the investment. If you have Avi unlocked you can try him to. He takes 1% more cut but gives you 5 seconds more time in the vault when exposed and 3 more seconds when undetected. It's up to you whether he is worth it. To unlock Avi as hacker, you need to destroy all 50 signal jammers around the map in free mode. Youtube video guide is here.
Patrol routes: It makes more enemies visible on mini map. I always do it but if you feel comfortable to skip it, I respect that.
Duggan shipments: MUST DO! Because you are supposed to get head shot and without Duggan shipments gone, guards will wear bullet proof helmet. You want to have some kind of flying vehicle because targets are all over the map.
Power drills: You wanna get it if you think there is enough time to hit deposit boxes AFTER grabbing all the main stuff.
Security pass: ALWAYS GET LEVEL 2 SECURITY PASS! This saves you a ton of time from hacking key pads. You can cycle through this option to a picture with a valet and a dealer.
Acquire masks: A complete waste of time.
EMP device and infiltrate suits: The former cuts power out and the latter gives you nigh vision in dark as well as the ability to rappel down the elevator well when entering casino if you choose some doors near helipad as entrance. If you want to sneaky in or out more easily, go ahead and do both. I think it's not worth it. Gun is your best friend.

Planning Board
I usually chose staff lobby or waste disposal as entrance. But you must choose staff lobby as exit and select high level buyer. Staff lobby door is close to both sewer and nearby police station, and high level buyer gives you most pay. And DO NOT ever buy decoy or clean vehicle. They are total waste of money.
Finale
The general rule is DO NOT kill guards if they are not in your way, or patrolling to a dead body. Also watch out for cameras. You can only shoot down 1 camera. So just stun them. It can be difficult if teammates are not on mic cuz you might need to take down some guards in pairs. What I usually do is typing "Can someone please aim with me? You aim at right guy and I aim at left guy, then I fire right after you." in chat box. I found it works well as long as teammates read English. Probably many of you already knew this but you can hit daily vault twice both on your way in and out. The gate control is in security room. Another important note is that the guards will be able to see you though glass on doors, but they will not be able to see you through bullet proof glass around security room. As far as after getting into the vault, just make sure get your ass outta there before times counts down to 0. And also, elevator is for suicide only. TAKE THE STAIRS.
Then it's much easier. At this time you have not alerted anyone yet so turn to your right after getting out of casino. Check out the map below where I drew a route to a safe spot to jack a ride from NPC. You just need to make sure to knock out the first NOOSE on the left side of van, and knock out the second one patrolling the Lost club house. Don't shoot because that will alert them. After jacking a ride now you have 2 option. First is to go down the sewer where I marked with black circle, or steal a chopper on the helipad of nearby police station where I marked with red H. You can practice both in free mode in terms of where to go in the sewer and how to get to the helipad, but please bear in mind that sometimes the helicopter doesn't spawn. And ALWAYS turn left onto the highway from sewer exit because turning right will take you near to casino and that will get heat back on you.
Escape Route

Big Con

From easy to hard: Gruppe Sechs, Bug Star, LS Water & Power, Young Ancestor.
Prep Board

Gunner: Hire the cheapest guy because you can't fire a bullet in casino. That will attract attention no matter where you are. The only way to kill anyone inside is knocking him out.
Driver: Hire the cheapest guy, period.
Hacker: Hire Paige or Avi.
Entry disguise: Gruppe Sechs gives you a clean run without alerting anyone until you get back to stair well. But I personally find other disguise more exciting. You just need to watch some Youtube videos before try them out. Young Ancestor takes longest time and most challenging imo.
Exit disguise: JUST DO IT. Without it, you will be hunted right after getting out of casino. Go get NOOSE or firefighter outfits. Firefighter mission is easier because you can call Lester to clear wanted level.
Patrol routes: I would say this is not necessary if you are playing Gruppe Sechs, but highly recommended if you are using other entry disguise because you are dealing with more enemies.
Duggan shipments: Not necessary at all! Since no shots will be fired, their protective gear doesn't do any use against knocking out.
Power drills: Same as other approaches.
Security passes: LEVEL 2!
Masks: Nobody cares.

Planning Board
This is the same as silent and sneaky approach.
Finale
There is nothing complicated about big con especially Gruppe Sechs. Just check your map for guards that are hostile. Guards and cameras marked in red circles are hostile while white color indicates "friendly". After making up to the ground level, you will want to circle to the back area and knock 1 guy out. Then make your way to laundry room and change your outfit. After that you can walk outta there like a boss.
Once you are out of casino, it's the same deal as silent & sneaky.

Aggressive

Unarguably the only approach to play with randoms lmao. But you do get less time in vault and will lose take from getting shot at.
Prep Board

Gunner: This can be flexible depending on your shooting skill. The cheapest guy already have automatic weapon so that's good enough for me. Go for better gunners if you enjoy shootout.
Driver: Do I need to say that again?
Hacker: Yeah one of those two.
Patrol routes: Nobody cares because it will be loud.
Duggan shipments: Let me say this, if you don't do it, it will take a full clip of mags with headshot to take down 1 guard. GET IT DONE!
Power drills: There is less time in vault so I usually skip this unless it's a crew of 4.
Security passes: If you don't get a level 2 pass then you are out of your mind.
Acquire masks: Literally no one cares.
Reinforced armor: It works like heavy heist suits in OG heists. It gives you more health but makes you run slower. If you have Duggan shipments wiped out then this is totally unnecessary. If there are rookie in your team then you might wanna get it.
Boring machine: This is a super effective prep mission as it allows you to enter vault level through sewer directly. But you have to have this particular access point scouted first.

Planning Board
To get in and out faster, you would still want to choose staff lobby. But entering through main entrance is more dramatic and funny. And for the last time I have to say, DON'T WASTE MONEY ON DECOY OR CLEAN VEHICLE!.
Finale
There is really no need to explain anything here. But some people do take a different route after getting out of casino, which is around the inside of race track. You can still stick the the route I provided earlier but you might encounter 2 or 3 more cops on your way to jacking an NPC ride.
Ok guys, go watch some Youtube videos and read some other guides if you have not done this before. I really wish you have fun out there and not waste other players' time by reading my beginner friendly guide. Casino heist is definitely worth playing because R* created this based on all the lessons learned from previous guides. It will be likely to be the template of next generation of GTA Online, which is just 20 years away!

Diamond Casino Guide:
So you decided that you wanna rob a casino, great! The Diamond Casino Heist is one of the best ways to earn money, but you're wondering, how do I get started? Well, you're in luck! This guide is going to teach you the ways to get the best out of the Diamond Casino Heist!
Step 1: Arcade
Alright to get started, you’re going to have to own an arcade. Now, it may seem better to go for the arcades on the top of the map to save yourself some cash, however, this will make all the preps much harder, as most of them take place in LS or Sandy Shores.
The best arcade locations are 8-bit ($2,530,000, located in Vinewood) and Videogeddon ($1,875,000, La Mesa). When buying your arcade, none of the upgrades are necessary, as most of them are cosmetic. You’ll have to complete a quick arcade setup mission to access the basement where the diamond casino heist planning board is located.
Step 1.5: Arcade Income
While this isn’t related to the diamond casino heist, I thought I would put this in there. The arcade generates income based on how many games you have, going up to 5k per in-game day (48 min). The game doesn't matter, so you can just buy the cheapest one (Monkey’s Paradise, $90,000) and fill up your arcade with it.
Step 2: Scope out casino
After you’ve finished watching Lester scribble a big mess over the whiteboard, you’ll be able to start the casino heist. Normally, you’ll have to pay a setup cost of 25k, but since it’s your first time doing it, it’ll be free. After you’ve confirmed that you want to start the casino heist, you’ll need to finish the scope out mission. For the scope out mission, you’ll need to take a variety of pictures for Lester in order to unlock entrances for the heist. A full guide is linked here but I’ll sum up the most important ones.

Staff Lobby: This entrance is arguably the best entrance for the Silent and Sneaky approach. It gives you easy access to the control room where you can get the daily vault easily. It is also the best exit for most approaches as not many guards patrol it. The staff lobby should be around the back of the casino and should look like a white door behind some yellow bollards.
Security Tunnel: By scoping out this entrance, it gives you the ability to enter the casino as a Gruppe Sechs team for the Big Con. This entrance is the best if not one of the best approaches to the casino heist. The disguise will allow you to go straight to the vault undetected and back up, however, you will be detected when going back out of the casino on the casino access floor, so I would suggest getting some exit disguises to make your escape easier. The security tunnel should look like a big metal garage door with a security camera watching over it under the racetrack.
Sewers: The sewers allow you to burrow down right into the vault access floor giving you easy access as you are right next to the vault mantrap. The sewer exit, however, is only available in the aggressive approach.
Roof Terrace: At first glance, the roof terrace may seem like a horrible entrance/exit, however as it turns out, the roof terrace is actually a contender for one of the best aggressive exits. By taking the roof terrace, you can shoot down the guards at the racetrack while they're not being able to shoot back and then parachute down.

You’ll only need to do this mission once, and it will be completed for all future casino heists.
Step 3: Vault Contents
The vault contents mission is pretty easy. You’ll be given the rough location of a Duggan security guard, once you find him, you can either hack him, which can take some time but you won’t get the cops on you if you do it right, or you can kill him and grab the phone, which will save you some time but you’ll need to lose the cops before you can enter the casino.
After you’ve entered the casino, you’ll need to bring out the sightseer app on your phone to find a wifi signal. After you’ve located the wifi signal, you’ll need to figure out the vault contents. Beware that you only have a limited time to do this (2 min).
Since it’s probably your first time, I would recommend that you go through every camera to scope out each POI. The target will be cash since it’s your first time, which has a payout of 2.1 mil on normal. The first time will always be cash (payout of $2,115,000 on normal), but if it’s not your first time, the targets can be either cash, artwork (payout of $2,350,000 on normal) or gold (payout of $2,585,000 on normal).
There is a 4th target, which is diamonds (payout of $3,257,100 on normal) however this vault content is only available for special occasions and has been removed from the vault contents.
If you do the heist on hard by doing the same approach after you’ve done another one, the payout will be 10% larger. If you’ve completed all 3 approaches to the heist, you can cancel the heist which can be helpful if you’ve got a bad target. Link to this is here.
Step 4: Selecting your approach
Once you’ve finished the vault contents mission, you’ll be able to select your approach.
There are 3 approaches to the diamond casino heist. Silent and Sneaky, The Big Con and Aggressive.
For beginners, I would recommend alternating between Big Con and Aggressive, because those are the easiest ones. For Big Con, choose the Gruppe Sechs disguise for the easiest entry. Aggressive is good for newer players however it does end up in a lot of money loss. After you’ve got the gist of it, alternate to doing Silent and Sneaky in place of aggressive for a bigger payout.
Step 5: Selecting your support crew
After you’ve selected your approach, you’ll need to select your support crew before you can do any of the prep missions.
Selecting your support crew is very simple. You’ll need a gunman to source guns, a driver to source cars, and a hacker to delay the nerve agent inside the vault.
Selecting your support crew depends on the approach and target in the vault. For Big Con, SnS, any target EXCEPT for art, you’ll want the worst gunman (Karl Abolaji, take his Micro SMG on big con, heavy revolver on aggressive and on SnS the choice is up to you), the worst driver (Karim Denz, take his sentinel classic) and the best hacker available to you, for most people, this will be Paige Harris (unlocked when the Terrorbyte is purchased, gives 3:25 in the vault when undetected and 2:23 detected).
For aggressive, you’ll still want to have the worst driver and best hacker, however, the gunman is up to you since you’ll be using guns a lot. I normally go with Charlie Reed (unlocked when purchasing a hangar), he takes a 7% cut (2% more than Karl) and gives you an assault SMG, however, you can get by with Karl, as every gunman gives you an SMG to go along with another weapon, which is still a perfectly fine weapon.
For Big Con, SnS and the target is Art, if you and your heist partner can both hack very well, you can get by with Yohan Blair (takes a 5% cut and gives you 2:51 in the vault if you are undetected and 2:01 if you are).
Step 5.5: Secret heist crew members
There are 2 hidden heist crew members that can’t be unlocked by purchasing a business like most heist crew members. There 2 are Patrick McReary and Avi Schwartzman. Patrick McReary is a gunman who takes an 8% cut and gives the choice a Combat MG or an Assault Shotgun in aggressive. Avi Schwartzman is a hacker that takes a 10% cut and gives 3:30 undetected in the vault and gives 2:22 if you are detected. To unlock Patrick, he spawns as a random event around the map. He spawns in a police car that you will need to hijack. A guide is linked here. To unlock Avi, you’ll need to destroy 50 signal jammers that are located around the map. A guide is linked here.
Step 6: Prep Missions
Now that you’ve selected your support crew, you’ll be presented with a plethora of prep missions. Some mandatory and some optional. To complete these missions, I suggest that you use a Kuruma, Buzzard, or Oppressor Mk2 to make your life easier. In some prep missions, you will not be able to call Lester, so be prepared. All of the missions can be done solo but it makes it easier if you have a friend with you to help you out.
Now onto the optional prep missions. Optional prep missions, are, as the name suggests, optional. The optional prep you should do depends on the approach. If you own a penthouse and have completed all of the missions, you will gain access to the security intel mission. It’s very easy to complete and you will only need to do it once. A nice trick is that the gauntlet actually spawns when you start the mission, not when the cutscene is triggered, so you can just shoot the driver and take the gauntlet. A guide will be linked below.
Let’s start with Silent and Sneaky. For Silent and Sneaky, the optional prep missions depend on your skill level. If you’re an experienced player, you don’t need to do much, only level 2 security passes. Power drills you can do if you think you have enough time. However, if you are a very new player, I’d recommend that you do patrol routes, Duggan shipments (you only need to destroy 3 to get rid of their bulletproof helmets), level 2 security passes, emp device and infiltration suits and power drills if you think you have enough time. If you do all these, the heist should be a breeze.
Going onto the Big Con, if you’re doing Gruppe Sechs, you don't need to do much. You only need to go through one door if you exit out the staff door, so you can decide if you want to do level 2 security passes or not. Patrol routes do make things easier, however are not necessary. Again, only do power drills if you think you have enough time. Make sure you do exit disguises. Noose and firefighter are exactly the same, so do firefighters since it has an easier mission.
For aggressive, again, patrol routes make it easier but are never necessary. Make sure to do Duggan shipments. You can solo it, but it will be much easier with another person. If you don’t get them all you can just close the game and you’ll be able to do the mission again. Reinforced armor allows you to take more damage, so I would recommend it even if it makes you slower. Be sure to also do boring machine as it allows you to enter through the sewers. Make sure to also do level 2 security passes unless you really like hacking doors.
Step 7: Finding people to play with
Now that you’ve completed all your required prep missions, you need some people to play with. If you don’t have any friends to play with, I recommend checking out HeistTeams or the GTAO Discord LFG Channels to find people to play with. Make sure to have good communication between your teammates otherwise the heist will be in chaos.
Step 8: Completing the heist
Now that you’ve got a solid heist crew waiting to grab all of that sweet loot out of the casino’s vault, you’ll be able to start the heist. If you're doing aggressive, the plan is pretty simple, shoot your way in, grab the loot, then shoot your way out. The easiest entry for aggressive is sewers, and the easiest exit is the eastern roof terrace. If you exit through the staff lobby, you’ll get shot a ton when going over the racetrack, however, if you exit through the roof terrace, you can shoot the guys behind the stones on the racetrack then safely parachute down.
For The Big Con, I’m going to assume you’re doing the Gruppe Sechs approach. By doing the Gruppe Sechs approach, you can pretty much waltz into the vault and back out of it, just be careful that this has some limitations. When going back up the stairwell/elevator to the casino access floor, the guards will have checked the vault and know it’s been robbed, so you disguise ain't gonna work anymore. I strongly suggest getting exit disguises, as they will greatly help your escape. The easiest exit for this is the staff lobby.
For SnS, I’m not really going to go into too much detail here because there’s a full video linked below. What I will talk about is when to use the emp (If you did the prep mission). I recommend emp’ing when you’re at the vault access floor, allowing you to waltz into the mantrap, or when you're coming back up to the casino access floor and are in the mantrap. Be warned that if you decide to get the daily vault when you trigger the emp, the emp’s timer will run out before you can get to your exit, so plan ahead. The easiest entrance for this is the staff lobby and the easiest exit is also the staff lobby.
Tips and tricks to complete the heist

If you are disguised, do not bump into any of the guards. They will detect you and start shooting.
In the control room, there is a button that you can press to open the door to the daily vault. One person has to hold the button while the other goes in and grabs the cash. This can be done with any approach.
Running and jumping is faster than just running normally, use this to your advantage while inside the vault.
Running in first person is actually faster than 3rd, so use this to your advantage when trying to knock out guards.
Don’t bother trying to escape the cops by hiding in an alley or something, either take your car into the sewers down by the LS river or take the heli that usually spawns on top of the police station. The sewers will result in you losing less money, however will be much slower. I will link both of these methods below in the useful media section.
Normally when exiting the casino from the staff lobby without any disguise, you’ll need to knock out a guard to the left of the swat fan to your right, before hugging the race track wall and then dropping down. I have found that sometimes if you run, the guard will hear you and detect you, causing you to get shot at. To prevent this, walk up to him making sure you stay out of his FOV then knock him out.
You walk much faster in the casino if you are in first person, making the vault contents mission much easier.
In prep missions, you can change any accessory (glasses, hat, ect.) to lose 1 star which is useful on missions where you can’t call Lester to remove your wanted level.
On some missions, you can lose the cops by entering your Terrorbyte/MOC/Avenger.
On some missions, you can lose the cops if you accept Lester’s apartment heist invite. This only works if you have a heist active.
In the hacking device mission where you have to infiltrate the FIB building, you walk a lot faster if you aim down sights on any gun, however, if you go into any agent’s LOS you will get detected instantly, so be careful when using this trick.
You can upgrade your getaway vehicles in the arcade by getting in them and pressing the button shown on the prompt that appears on the top left.

Useful media

Diamond Casino Heist FAQ
Welcome to the Diamond Casino Heist FAQ! This thread is going to go through all of the new changes and content added to the Casino Heist DLC. The information in this thread is up to date as of 28/7/2020.
Release Date
Announced on December 5th and released on December 12th, 2019, the Diamond Casino Heist is the latest DLC to come to GTA Online as of July 25th, 2020. This DLC adds a bunch of new content, including new vehicles, properties, vehicles, and a brand new heist!
New Content
Vehicles:
Maxwell Asbo (SSASA): $306,000 - $408,000
Karin Everon (SSASA): $1,106,250 - $1,475,000
Lampadati Komoda (Legendary): $1,275,000 - $1,700,000
Vapid Retinue Mk II (SSASA): $1,215,000 - $1,615,000
Ubermacht Rebla GTS (Legendary): $1,175,000
Maxwell Vagrant (SSASA): $1,660,500 - $2,214,600
Grotti Furia (Legendary): $2,055,000 - $2,740,000
RUNE Zhaba (Warstock): $1,800,000 - $2,400,000
Karin Sultan Classic (SSASA): $1,288,500 - $1,718,000
Nagasaki Outlaw (SSASA): $951,000 - $1,268,000
Declasse Drift Yosemite (SSASA): $981,000 - $1,308,000
Dinka Sugoi (SSASA): $918,000 - $1,224,000
Dinka Blista Kanjo (SSASA): $435,000 - $580,000
Nagasaki Strider (Legendary): $502,000 - $670,000
Dewbauchee JB 700W (Warstock): $1,470,000
Overflod Imorgon (Legendary): $2,165,500
Albany V-STR (Legendary): $1,285,000
Progen PR4 (Legendary): $3,515,000
Ocelot R88 (Legendary): $3,115,000
Nagasaki Blazer Lifeguard (Warstock): $62,000
Brute Boxville (Warstock): $298,500 - $398,000
Declasse Bugstars Burrito (Warstock): $450,000 - $598,000
MTL Fire Truck (Warstock): $2,471,250 - $3,295,000
Declasse Lifeguard (Warstock): $865,000
Brute Stockade (Warstock): $1,680,000 - $2,240,000
Weapons
Ceramic Pistol (Ammunation): $20,000
Navy Revolver (Unlocked after finishing the Los Santos Slasher treasure hunt): Free
Properties
The release of the Diamond Casino Heist DLC introduces a new property: arcades. Arcades are a passive business that allows you to host the diamond casino heist. The maximum daily income of the arcade is $5,000.
They are purchasable from Mmazebankforclosures at 6 different locations. The cheapest is at $1,235,000 (Pixel Pete’s, Paleto Bay) and the most expensive being at $2,530,000 (8-bit, Vinewood Hills).
Customization options on offer are 2 arcade styles, $290,000 - $470,000, 8 mural options, $50,500 - $107,500, 8 floor options, $78,000 - $165,000, 8 neon art styles, $107,500 - $320,000, personal quarters, $150,000, high score screens, $295,000 and a garage $215,000. 2 extra options are available to purchase from the arcade computer, which are the master control terminal, $1,740,000 and the drone station, $1,460,000. A variety of arcade games are also available to purchase, ranging from $90,000 to $420,000.
Credits
u/Pepperooney_ for adding a bunch of info on the tips and tricks section
u/what_it_dooo for suggesting the roof terrace and the hacking device trick

Hello everybody!

The new Casino Heist has been out for over 2 weeks now and there is probably already plenty of guides about it on YT, but I've wanted to make my own guide for a while now and finally think that I have enough experience to make one. I have played the Casino Heist about 30 times now (lost count at 10) and played all the 3 different approaches with a friend, so anything I say about the finale in this guide will be doable with just 2 guys, unless I specifically say so.
Keep in mind this is not a completely flawless guide, I will keep improving and editing it whenever I learn something new. I hope this guide can help you fly through the Preps and have no problems doing the Finale.

1: The Basics
2: Vault contents
3: Approaches
4: Crew
5: General Prep Work
6: Approach specific prep

Silent approach
Big Con approach
Aggressive approach

7: Silent Finale
8: Big Con Finale
9: Aggressive Finale
10: Tips and tricks

1: The Basics

First of all, do the Preps in a solo public lobby. Theres no reason not to do them in a solo public lobby since others can only affect your experience in a bad way, unlike selling MC stock where you will get a bonus for every player in the lobby. (Guide for making solo public lobbies here)
Of course you can do the prep missions with a friend, that way you can avoid having to go to a certain place twice in some prep missions, but it's not neccesary. If you and a friend both do your prep missions simultaneously, you will be able to do 2 Finales in 2 hours if you are experienced in doing the missions. If you don't have any friends to do the preps with, don't worry, they're all doable completely alone and shouldn't be a problem to a decent player.
Now for Arcade locations. Of course I have to talk about Pixel Pete's in Paleto Bay. If you plan on doing the Casino Heist multiple times for a good income of large amounts of money, invest the cash from your first couple of runs from Paleto Bay into a proper arcade. I own the Videogeddon arcade in La mesa (~1,8 million), which is the cheapest in LS, but imo the 8-bit arcade (~2,6 million) is the best since its basically on the same road as the Casino and its garage is way more accesible than the La Mesa one since over there you have to drive around to the back to get into the Garage (Always enter your arcade through the garage entrance, it saves a lot of time compared to going through the front door, into the management office and through the secret tunnel) Either way they are both viable choices, but you should forget about the other ones in LS.
Vehicle choice. Obviously the Oppressor Mk II is your best friend for most of the prep missions, but there are plenty other viable alternatives. The Buzzard can be spawned in directly in front of you via CEO vehicles (if you own one it's free, otherwise it costs 25k per spawn) The issue with the Buzzard is its armor. After taking a couple shots, and trust me, you will, your Buzzard will start to smoke and will then stop working within ~5 minutes. The Akula is another very viable choice, especially when looking at the fact that you will have to lose the cops a lot (the memes are true). It also has fast firing homing rockets (don't use the rocket barrage, it's useless for grinding purposes) which will also help (it has infinite (?) rockets so running out of them won't be an issue, unlike the Oppressor, which only has 20) The Hydra is another hidden gem for the prep missions, if you can fly it well that is. Keep in mind that when using bulky vehicles like Helicopters or jets, the La Mesa arcade will be even worse since you have to land on the road and walk around the back of the arcade, whilst with the oppressor you can just fly straight into the back alley.
Hard finales. After doing a certain approach, that approach will be locked for the next heist. After doing another heist with a different approach, the approach first used will become available again with a red skull signalizing it will be on hard. Choose your 2 favourite approaches (information about the approaches below) and do them back to back, as playing the heist on hard will of course result in the loot being worth more. Don't worry about the heist being to difficult on hard, the only differences for the 2 sneaky approaches is the amount of fingerprints during hacks and for the loud approach the improved armor will be more than enough to make the heisdt a cakewalk.
I recommend purchasing the keypad at the prep board and training your fingerprint hacking skills on there. Trust me, you'll want to be fast when it comes to hacking the keypads. I get the hacks done in about 15 seconds and that is usually fast enough to get all the loot I want.

2: Vault contents

Alright, now for the interesting part, the vault contents. You probably know by now that Cash is the worst option. The best option in terms of money is Gold, while artwork takes significantly less time to loot. If you plan on doing the heist as a 2-man team, aim for artwork, if you are more than 2, go for gold. Forget about Cash.
So how do you influence what loot the vault contains? When doing the scoping out the vault mission, you will be able to see what the vault contains. If it's what you want, then good for you, you may leave the casino and move on to selecting the approach and crew. If however the vault contains cash or whatever loot you don't want, you can "change" the vault contents like this:

Leave the camera
Call Lester WHILST STILL IN THE CASINO
Cancel the Casino Heist
Leave the Casino and go back to your arcade
Pay another 25k to start the heist again

The vault content will already be revealed. If it however still contains the unwanted loot, leave your arcade, call Lester to cancel the heist again, re-enter your arcade, start the heist for 25k again. You will then have to do the vault content mission again and if it still isn't the wanted loot, you may repeat the tactic above.
Don't worry about the 25k that you'll pay each time you restart the heist, good compared to artwork is worth about 200k more so you will have plenty of chances before losing money.
The following describes a controversial glitch that may be used to gain more loot than you're meant to, if you don't want to do this glitch, then you don't have to, but some people will obviously want to do this.
For the glitch, you need the vault to contain Gold. I would usually write this in the finale section but this may influence your decision on what loot to pick so I see this as a more fitting place to write it.
When inside the vault, the gold will be stored on several carts across the vault.

Go up to one and press E to start collecting the gold.
Collect every bar but stop at the last one
Press right click to stop the looting whilst there is still loot on the cart
Wait 2-3 seconds infront of the cart
Press E to start looting again

Voila, the cart will be full with gold again and you may now collect all the bars. This can only be done once for each cart, so after "filling up the cart" once you can collect all the loot off of it without losing anything. This way you can get up to ~3,7 million worth of gold. You will be able to collect more but the rest won't be added to your total, so you might aswell stop at that amount and leave the vault.

3: Different Approaches

1: Silent and sneaky
This approach involves you sneakily going into the casino with silenced weapons, sneaking your way to the vault and then getting out undetected again. I recommend playing this with people that are willing to communicate. I'm not saying you shouldn't pick this if you have to play with randoms, just make sure they are capable of cooperating before you start the heist.
The pros of this approach are that you will have ~3:25 minutes inside the vault and that you wont get shot (hopefully) so you wont lose any loot. This approach also lets you casually empty out the secondary vault opened via the security center (more about that in the finale section)
The obvious cons are that you need to have teammates capable of cooperating so they wont rush in, alert the guards and make you lose your sanity. The detection system is also very inconsistent and things that you might think wont alert the guards will turn out to do so, sometimes.
For this approach I recommend getting the artwork loot if you are just 2 players and gold (w/o glitch) if you are more than 2
The prep missions that may be skipped for this approach are:

Power drills, since the lockboxes inside the vault don't pay that much and it takes time to drill them open that can be used to loot the main contents

2: Big Con
You enter the casino in disguise and get out in disguise, making you lose no loot from being shot like in the silent approach.
First of all, USE THE GRUPPE SECHS UNIFORMS. For the gruppe sechs uniforms to becaome available, you have to photograph the security tunnel of the casino (see image below) By using the gruppe sechs outfit, you can walk straight into the vault without needing to kill anyone.

Service tunnel location
This is in my opinion the best approach since you can easily stay undetected the whole time and it leaves very little chance of failure by stupidity and gives you the full 3:25 minutes inside the vault for looting.
Recommended loot is once again Artwork for 2 people, Gold for 3-4 people.
The prep missions that may be skipped are:

Patrol Routes. You will only have to kill a maximum of 2 guards and they will be near enough to pop up on your radar anyway
Duggan shipments. You will kill the 2 security guards with melee since your weapons don't have stabilizers and their armor doesn't save them from melee attacks.
Power drills, again, since the effort of drilling the lockboxes is not worth it most of the time

3: Aggressive
The most barebones approach involves you shooting your way through the casino and blowing the vault open. This is the easiest approach to do with randoms and can even be done with level 10s who just got their first million.
I recommend photographing the sewer entrance to shorten the way that you have to fight your way through (see image below)

Sewer location
The recommended loot is always artwork since you won't have as mcuh time in the vualt, so the faster you get all the loot the better.
The prep missions that may be skipped for this approach are:

Power drills, obviously since you have less time inside the vault.

4: Crew

Crew choice, seems like a hard decision, really isn't. You basically want to pick the cheapest crewmembers who give you the best hardware.
1: Gunman
Karl Abolaji. For every approach. This might seems like a stupid decision seeing as he only gives you a sawed-off shotgun or heavy revolver for the loud approach, but you will actually get an SMG aswell, which is very usuable for the loud approach. If you don't feel comfortable with just an SMG, Pick either Patrick McReary or Gustavo Mota. Packie will of course be very hard to unlock (Guide to unlocking Packie here) but he will give you a combat MG for only 8% of the cut, whilst Gustavo Mota will give you a Carbine OR Assault shotgun (with the SMG) for 9%
For Silent and Big Con, Karl will give you Micro-MPs, which are more than capable of doing their job, that being killing guards in the silent approach. For Big Con, you could actually play completely without weapons since you only need to melee 2 guards.
2: Driver
Probably the least important crewmember. Some people don't even use the getaway cars provided. So of course, pick Karim Denz. He will be able to source oyu the Sentinel Classic, which is a more than capable Car for getting to the needed places (more information about getaway in the finale section) for the smallest cut.
Of course you may choose other drivers if you want to unlock the trade price for any of the vehicles.
3: Hacker
The most important crewman. Really the only viable choice is Avi Schwartzman, who can be unlocked by destroying the 50 signal jammers spread around San Andreas (Guide for 50 jammers here) He will give you the most time in the vault (Paige is an "expert" hacker aswell but she will give you ~15 seconds less inside the vault) Don't even think about all the other hackers, the hacker is no place to cheap out.

Ideal crew layout

5: General Prep Work

Alright, in this section I'll go over all the prep missions and give some tips and hints on what to do and what not to do and what vehicles work best. First of all, don't buy any of these preps for 70k, they're all somewhat easy to do and shouldn't be a problem for a solo player.
1: Untraceable weapons
This mission is be annoying but also easy. There are lumtiple types of this mission, and whilst none of them are a true challenge, they can be annoying to do since you have to either fly/drive a slow vehicle or collect 2 crates.

Noose Vans: There will be 4 Noose vans around the map and you have to blow the back door off to check for the weapons. You cannot lock onto the vans with homing missiles, so you either have to have good aim or use stickybombs in a ground vehicle. After finding the right one, you have to take it back to your arcade, after losing a wanted level. The annoying thing is, you cannot call Lester to lose that wanted level and the Van is very slow, I recommend driving through a tunnel where the cops cannot go to lose them.
I/E crew: You have to fly to the shore and find A couple of guys exporting the weapons, just blow them up or murder them any way, get in the Tula and fly to Sandy Shores airfield. When taking off in the Tula, switch to VTOL mode and gain some forward speed and altitude before switching to normal flying.
Lost MC/Vagos: You have to go to the clubhouse of the Vagos or Lost, clear the hostiles, find the weapons inside the clubhouse and bring them to your arcade. You will probably die the first couple times you try this mission, but you'll get the hang of it eventually. If you get the Lost MC mission and you have an arcade in LS, I recommend just finding a new session if you're alone since flying to Paleto Bay twice can be very time consuming.

A weapons case inside the Lost MC clubhouse
2: Getaway cars
This mission is somewhat easy for all types, but of course it's much faster done with a friend since you will have to get 2 cars most of the time.

Police warehouse: You have to go to a vehicle warehouse of the police and get the 2 cars out of there, don't worry about the sounds of the engines when in the warehouse, the cops inside seem to be deaf. When driving outside, be careful not to alert the cops standing outside or you'll have to lose your wanted level first.
Valet: You go to a hotel, scare away some valets, dress up as one and wait for the cars to arrive. Nothing much can go wrong here. The only things you shouldn't do is shoot or knock out the valets and bump into somebody infront of the hotel. Just simply bring the cars to your arcade and you're done.
I/E crew: You have to take the cars off a crew who just imported them. Just go to the location, kill the goons and take the cars. Watch out however, the enemies have extremely good aim and even a single enemy can kill you in a couple of seconds. Just use your homing rockets (don't worry, the getaway cars can't be blown up) to kill them, get the cars and bring them to your arcade.

3: Hacking Device
Seems like a simple mission, and it is. There are only two types of this mission, and they are both somewhat easy.

FIB: Collect a security pass off an FIB agent by brutally slaughtering him and his fellows, go to the FIB office, find the briefcase with the hacking devise, get out, lose the cops and bring it to your arcade. When killing the FIB agent, an exploded vehicle may block the agent's corpse. Just get another car to push anything away. There is also a bug where the corpse will either always be considered as blocked or ont even appear, if that happens you have to find a new session and restart the mission.
Noose: The early part is pretty similar to the FIB type, you collect a keycard off of an agent, enter the Noose building and use your phone to find the hacking device. When you get out of the Noose building, the alarm will always automatically go off, just fly away with your OppressoAkula etc. and lose the cops before bringing the hack device to your arcade. You can also assassinate the agent silently when collecting the keycard by approaching him, waiting for him to go away from the other 2 agents and then bopping him in the head with a gun, but form my experience its faster to just blow him up since you'll most likely lose the cops on the way to the Noose building anyway.

The briefcase you're looking for
4: Vault Keycards
This one has 2 mission types. In one you just go to two guards who have the keycards, eliminate them silently by smacking them in the head with a weapon and then looting their keycards.
The other mission is a bit more complicated. It involves you getting a prison bus and entering the bolingbroke prison in that disguise tho then silently murder a guard there who has the keycards. You actually don't have to collect or even blow up the bus, you can fly straight to the prison, kill the guard and get the keycard. Keep in mind thatr you wil get 4 stars doing it this way and there are snipers on the 2 adjacent towers to where the keycard guard is, so you'll wnat to kill those first before looting the guard.
The recommended vehicle is the Oppressor Mk II just to get around faster, but the Akula is a very viable choice aswell to lose the cops more easily after flying to the prison.
5: Guard Patrols
Pretty straight-forward mission. You go to a Duggan security meeting, kill all the guards, find the correct car, photograph the plan and then get out.
This mission can be done stealthy, but it's basically impossible, you're better off juzst shooting them straight away.
The correct car will always be a Felon GT and there will always be 3 of them in the same positions, so you get the hang of where to go after doing it a couple of times.
Once again the Oppressor and Akula are your go-to vehicles for this mission, but DO NOT use the rockets to blow up the guards, the chance of accidentaly blowing up the car with the plans is not worth the risk, and I suggest you also dont use a Minigun since that can also bvlow up the car pretty quick.
6: Duggan Shipments
This is the most stressful prep. You need to destroy 10 of Duggans shipments in 10 minutes to weaken the guards inside the casino. The easiest way to do them is with any chopper with rockets (Akula, Hunter, Savage etc.) or the Oppressor Mk II (you may need to fly an optimal route so you have enough time to destroy all of them.
It is actually no neccesary to destroy all of them, for the silent approach destroying 2-4 is sufficient to make the guards not have helmets (you don't want to bodyshot them anyway, that might make them sound the alarm) but for the loud approach, it's best to destroy all 10 of them so that the guards only have Pistols and Micro SMGs.
If you fail to destroy all 10 in time, you can quickly leave the session before the time runs out and retry the mission.
7: Security Intel
This prep is unlocked after completing the 6 Casino missions unlocked by buying a Casino Penthouse. It can only be done once, so you won't have to replay it every heist.
The mission is simple, you go to a mall, meet Vincent, get the stolen car back for him (use a vehicle with drive-by weapons, helicopters and the Oppressor aren't good for this mission) and done, you can now see all the cameras inside the casino.
8: Power Drills
This mission also has 2 types, but the van one is much rarer. The common one involves going to a construction site and getting 2 power drills.
When you get to the cunstruction site, there will be a white icon on the map. Go there and equip the helmet (your character may remove the helmet shortly after equipping it but the disguise will still work) then just go and check the boxes for the power drills
YOU CAN CARRY BOTH DRILLS AT ONCE! That way you don't have to fly all the way to your arcade and back to collect the other drill.
The second type involves stealing a van with the drills inside and taking ti to your arcade. Simply use a vehicle with drive-by weapons (Once again no chopper or Oppressor), kill the driver AND passenger (he will get on the driver seat after the driver dies), collect the van and take it to your arcade.
9: Security Pass
First of all, ALWAYS get the level 2 security pass (the one showing a valet and croupier on the mission picture) The level 1 pass will only get you through the outside doors whilst the level 2 pass will open all doors except the level 3 ones inside the vault.
Once again, two types of this mission may occur. The first involves you stealing a hearse from a church parking lot. You will then have to lose a 2-star wanted level and drive to a hospital where you then have to find the corpse of a valet and get his security pass. When entering the hospital, your character may automatically have a weapon drawn, so pay attention to that before running through to the corpse.
The other type has you going to the party of a croupier, waiting until lester found the right guy and then take the security pass off him. When you get to the party, there will be a pavillon with people dancing, just go there and start dancing until lester has found the right guy. When you then search the croupier for the pass and it's not on him, just search for a small purple keycard (it can be somewhat hard to find but it will always be in the same locations) and collect it.
As for vehicles, anything goes. The Oppressor will probably get you where you want to go the fastest.

The pavillon that you can dance under

6: Approach Specific Preps

Silent approach:
1: Drones
You have to destroy 5 drones spread around LS and collect their parts. Pretty simple mission, use something with rockets (Oppressor will have better rockets than Helicopters) and blow up the drones. You can of course carry all 5 drone parts at once.
It can be tricky to lock on to the drones as you will also lock onto the cops if you have a wanted level, just swap from non-homing to homing rockets if you locked onto the wrong target.
2: Laser drills
This can be a difficult mission. You will either have to take the two drills off the military, which may be hard since they are very accurate and theres a lot of them, but you can use you Oppressor or Akula rockets without worrying about blowing up the drills, just be sure to stay far enough away, their aim is surprisingly good. Be careful when collecting the first laser drill, if the cops kill you your Oppressor may be impounded and you have to use a different one.
The second type will be to take the drills from a bunch of Cliffford soldiers (apparently they're still around) which is way harder than the military since the cliffford soldiers are EXTREMELY accurate and there will even be a juggernaut and snipers. I don't recommend using the Oppressor for this as you are very vulnerable when standing still, go with an Akula instead. Just kill all the soldiers, enter the warehouse, kill some more soldiers, take the drills and get to oyur arcade.
3: EMP
Another pretty easy and simple mission, you will have to collect a cargobob (with an extra long cable) from the airport, fly to the LS University and steal their EMP. Then just fly to the drop-off, lose a 3-star wanted level by evading the helicopters and drop off the EMP.
Some people skip this mission and the next one, but I use the EMP during the finale to casually do the last hard part so theres no risk of screwing anything up. If you are however coordinated enough to not need the EMP, then you may skip this and the next prep
4: Stealth Uniforms
I highly recommend paying for this mission, it can be very annoying and you get the 70k back from the finale anyway.
This mission involves you going to humane labs and assasinating guards silently (very similar to the infamous deliver EMP mission) and getting the uniforms from the garage where you would park the insurgent in the Humane Labs Heist. This mission can be done quickly if you have a buddy, if you don't, it's better to just skip it and pay the 70k (If you don't plan on using the EMP you don't need to do this mission anyway, it's only for the night-vision equipment)
Big Con approach:
For this one, I'll only talk about the group sechs uniforms, since this is the easiest method of doing the Casino Heist by far. If you want to use a different uniform to unlock it, go ahead, but do be warned that it will be significantly harder to fully stealth.
1: Group Sechs, part 1:
Simple mission, go to a mechanics repair shop, kill the mechanic after realizing the Stockade is locked, get the keys and drive away. You will get a wanted level, but you can call Lester to easily lose them.
2: Group Sechs, part 2:
A bit harder, but still pretty easy. This mission is similar to the Patrol routes mission, you have to go to a group sechs meeting, kill everyone (this can also be done stealthy, but its again almost impossible), photograph the license plate of the black stockade, send it to Lester and then get the equipment and bring it to your arcade. Again as with the Patrol routes mission, do not use explosives to kill the guards as you might accidentaly blow up the equipment. You can call Lester to get rid off your wanted level.
3: Vault drills
Yet another simple mission with two types

Fleeca: A crew of bankrobbers will be robbing a Fleeca-bank with the needed drills. Go there, kill em, get their drill, lose the cops, bring the drills to your arcade. Pretty simple, but you cant call Lester, so using an Oppressor or Akula is beneficial.
Heist crew: A bunch of heisting dudes are being arrested by the police. Go there, kill em, get their drills, lose the cops, bring the drills to oyur arcade. Pretty simple, but you can't call Lester, so using an Oppressor or Akula is beneficial....hm, I'm having quite the Déjà vu.

4: Escape Outfits (Noose)
I'm choosing Noose outfits because they look better (and I'm sure they are in some way better than the Firefighter uniforms, I just don't know how, you seem to get spotted in the Noose uniforms aswell)
Simple (yet somewhat difficult) mission. Go to the mission row police station, kill all the cops there, find the Noose equipment, loose the cops and bring them back to your arcade. You can't call Lester to lose the cops so an Akula would be helpful. When collecting the second uniforms doing it solo, you will once again get 4 stars, so be ready to evade the cops again. Also, when you die at the police station, the cops will most likely impound your vehicle, so a careful approach would be better.
Aggressive approach
1: Thermal explosives
Loud has some pretty annoying mission, this being the first one. Once again, there are 2 types of this mission

You have to go to some rednecks and get the explsovies off of them. Just kill them all (once again no need to worry about blowing anything importnat up) and collect the boxes. They have a pretty big pickup distance so collecting them in a Helicopter should be no problem
SecuroServ Warehouse: Go to a warehouse, kill some people outside, kill some people inside, find the explosives, bring them to your arcade, no cops, pretty easy.

2: Vault explosives
This may be the most annoying mission of the entire heist. You have to go to a crash site of a plane, dive to the wreck and collect the explsovies. If you own one, put on a diving suit BEFORE starting the mision, you can't access the outfits during the mission.
When arriving at the crash site, you can dive straight to the plane if you have a scuba suit equipped, that saves you the killing and you won't get shot at instantly. Otherwise you have to kill some goons and equip a scuba suit nearby marked on your radar. When you collect the explosives, 3 helicopters will spawn. When you get out of the water, kill the gunners inside the helicopters, not the pilots. The helicopters would respawn and by only killing the gunners they will just follow you without shooting you.
3: Improved armor
You'll probably want to buy this prep, since this mission can also be very annoying. Two types of this mission, both are very unpleasant.

Humane Labs: Go to the beach at humane labs, get into a scuba suit, dive through the cooling tunnel into the facility, find the armor and bring it to your arcade. This mission may not be that hard, but the long swim and indoor fighting stretch out the mission and it quickly becomes repetetive and boring. There will atleast be a buzzard when you get out of the facility.
Merryweather bunker: Enter a bunker, kill the merryweather goons, find the armor and bring it to the arcade. Simple mission on paper, but the enemies will probably kill you atleast once and the armor sometimes can be tricky to find, I once spent 15 minutes searching the armor.

4: Drill
Simple mission and only needed if you plan on entering the casino through the sewers. Just go collect a truck with the drill loaded onto it, drive it through the water channel and into the sewers.The time you save by going into the casino through the sewers is probably negated by the time it takes for this mission, but having a more relaxed finale is certainly worth doing one more short prep mission.

7: Silent Finale

Alright, it's finally time for the big moneys, the finale. For this approach, you'll want to go in through either the garbage disposal or personnel room and go out through the personnel room. ALWAYS choose the high end buyer, he will give you the most money.
The finale starts very simple, you drive to the casino and enter through the door you chose. Careful, there will be a camera that you need to zap using your stun gun. When inside, there will be metal detectors that you need to disable by shooting the current box with the stun gun. Sometimes there will be guards watching the metal detectors, in that case you need to take them out before you go through.
When taking out guards, it's better for player guy to kill 2 guards facing eachother, as internet issues may cause in the alarm being raised even if the guards are killed simultaneously. You have more than enough time between shooting the first guard and the second guard raising the alarm that it shouldn't be a problem, just make sure your teammates stay back and don't interfere with the player killing the guards.
After clearing the first area (see picture below), you enter the security room through one of four doors (most of the time 2 of them are locked, can be seen by a red display on the keypad instead of the blue diamond) and then wait for the guard in the hallway to move out of the cameras sightline (Do not worry about the glass at the security room, for some reason guards can't see through it. The y can however see through the glass of the doors) Then you follow him (watch out for the camera) and shoot him in the head. Feel free to then clear the secondary vault by one play opening it for another player to loot (theres another button to open the vault inside, the player pressing the button only has to let him in) and then USE THE STAIRS to get to the vault floor.
When going down the stairs, a guard will walk up the stairs, shoot him in the head, disable the camera in the stairway and make your way all the way down.

Getting to the stairs undetected
On the vault floor, go out of the stairway and take out the 2 guards to the left. Then set off your EMP (this will also obviously disable the cameras) by having the host open their phone and using the securoserv-hack. The lights will then go out and you can rush into the main lobby and take out the 4 guards there. You can ignore the last guard inside the security room, just go to the keypads, swipe both at once and enter the mantrap.

Getting to the mantrap undetected
When at the vault door, 2 guys get out their laser drills and start drilling. The drilling is very simple, you just keep the drill as hot as possible whilst not overheating it. When inside the vault, take as much loot as you can but make sure to leave the vault before the time runs out (I recommend stopping the looting with 20-25 seconds remaining to ensure you have enough time to get out).
When getting back into the vault lobby, there will be 2 guards walking past the stairway, you can ignore those, just use the stairs to go up again (and don't forget to disable the camera in the stairway)
When back in the main floor, follow the route shown in the picture below whilst taking out any guards in the way (2 will be in the security room, you can ignore those) and leave the casino through the personnel door. Don't worry about the metal detectors whilst going out, they dont seem to alert the guards.

Getting out of the Casino undetected
When outside, again follow the route shown on the picture below to get to the getaway cars (locations may vary with different drivers) and drive into the sewers. Then spend some time in the sewers by either waiting or driving to another exit (I personally like to drive to the exit right at the highway so that the drive to the buyer is as fast as possible) Make sure not to drive too close to the Casino, as that will get you 5 wanted stars. I recommend avoiding the freeway next to the casino, you may however use the road to the north-west of the freeway.

Escape route with getaway car locations in pink (when choosing the 5% driver)
Then just casually drive to the buyer after you've lost the cops and there you go, fat loot.

8: Big Con Finale

This is the easiest finale by far. Choose the group Sechs entry uniform, noose escape uniform, the personnel rooms as the exit and of course the high end buyer.
Take the Group Sechs truck to the Casino and through the service tunnel, wait until the guard lets you through, park it on the yellow marker and use the elevator or stairs to get to the vault floor.
On the vault floor, just run to the keypads for the mantrap. The guards don't care if you're running or even jumping, just don't bump into anybody and don't draw your weapons.
The just casually loot the vault and again, make sure to get out before the time runs out (stop looting with about 25 seconds left to have enough time to get out safely.
Then just walk through the mantrap and the vault lobby again but USE THE STAIRS to get to the main floor (the camera will not raise the alarm, don't worry about it). Make sure you are all past the camera before going to the main floor, as anyone who didn't go past the camera will get detected due to the guards being alerted and a wanted level appearing. When at the main floor, use the route in the picture below to get to the Noose outfits and switch into them to walk past the last few guards without any problem.

Getting out of the Casino with the Noose uniforms
When outside, follow the same route as in the silent approach to get to the getaway cars. Drive into the sewers, lose the cops in there and then again casually drive to the buyer whilst avoiding driving to close to the casino.

Getting to the getaway cars and into the sewers undetected

9: Aggresive Finale

There really isn't any major explanation needed for this approach, as you won't have to worry about getting detected.
If you chose to enter through the sewers, drive there, enter the tunnel that was dug with the giant drill and plant explosives at the wall to gain entrance to the vault floor directly.
Then just shoot your way to the mantrap keypads and have the others protect the people opening the mantrap if you are playing with 3 or 4 players.
When looting the vault, you won't have to worry about getting out in time, and the nerve agent does very little damage, so don't be scared to take longer than the timer says.
Whilst shooting your way out of the casino, you may use either the elevator or the stairs to get to the main floor. Going through the security room allows you to evade any guards that may be in the south corridor.
When you get out of the casino, you may follow the same route as in the undetected approaches or run directly to the getaway vehicles, although you will probably get shot more doing that and therefor loose more money.
Get to your cars, drive into the sewers and lose the cops. Then you're just one casual drive away from making another bunch of cash. I highly recommend getting bulletproof tires for your getaway cars on this approach, and whilst you are spending that 10k per car, why not go big and get the 15k upgrade that laos makes the cars go much faster.

10: Tips and tricks

So in this section (which I will probably expand with additional tips, feel free to leave some in the comments) I'll go over some of the things I didn't mention that may save some effort or time when doing this heist.

You can lose the cops by going into the back of your Terrorbyte if you aren't carrying any equipment (useful during the untraceable weapon mission with the Noose van)

That about covers it for this heist. This has unexpectedly been quite the project for me, it took me 3 days of writing here and there and getting screenshots, so leaving a smol updoot would be appreciated. If you have any questions, of course feel free to leave a comment, I'll try my best to read every single one of them :)
Happy heisting! (and may your sessions be free of griefers!)

Just sharing some of the things I learned from doing the casino heists a bazillion times. These are not "easier ways of doing things", just some things some of you might not know (kudos if you do)

There are easier variants of most heist preps (if you are solo), like the FIB for hacking device, vagos HQ/ plane for weapons, etc. If you launch a prep and get the tougher one, if you have living quarters in arcade, use it as your spawn point, and just look for a new session from the online menu. You'll spawn in the arcade and you can launch the prep again with a chance for the easier prep. It might get boring if you are doing this regularly but you save a lot of time with the easier preps solo.
You don't need the Tunnel Boring machine prep for the sewer entrance in Aggressive. It seems like the logical thing you'd need , and if you choose sewer entrance without doing the prep, you'll see the boring truck parked outside and the sewer is now a tunnel, implying it was used, even if you didn't do the prep. My theory is it's there by some weird design bug, but hey, less work for you so might as well enjoy it.
You can open the context menu and go to styles > accessories and change something like your glasses (glasses on/off, not switching one glass with another) when you are not in direct view of the cops (the stars are blinking) - you can drop one star of wanted level. If you do this quick for a three star level like the patrol routes, and drop to two, the chopper has a chance of not spawning
You can call Lester to remove the wanted level during the entire gruppe sechs prep for Big Con (both the car and the outfits)
In Silent and Sneaky and Big Con, a good, fast car usually spawns in front of the sewer tunnel (at least it does always for me). If you have Artwork, and didnt get a good civilian vehicle on your way out, you can just run to the sewers and grab it. For me it's faster than getting the getaway vehicles across the street, and stay under the cops' eyes because we are running right out to the sewers (going left right after vaulting the fence takes you to the sewer area while the cops are looking at the roads)
You need to do 0 duggans for Big Con. That one or two people you need to knock out will go down just the same with 0 duggan shipments destroyed. In silent and sneaky, just 3 would do because that removes the helmets and that's all you need because you'll be making headshots.
Doing the Patrol routes has an effect on Aggressive. Enemies are not usually marked untill they are closer to you or shooting at you. With Patrol routes done, they will be marked right when they spawn, which is helpful specially with the lowest cut gunman. With Packie, this is VERY fun.
If you cancel the Casino Heist while in the casino (or before you get the "prep complete" message), when you walk away, you will still get the prep complete message, and when you start the heist again, you won't have to do the scope mission and will have a chance of getting another target based on RNG.
You can do a free Fingerprint practice here: https://mikecoon.github.io/gta-online-finger-hack-maste
On the missions where you need to pick up two things and they give you a wanted level (weapons or getaway vehicles) - you can take one of them out of the area (just outside) and then kill yourself to drop the item, run back and get the second item (the entry dot won't be there but if you walk to where it was it will take you inside). This way you need to lose the cops only once because the next time you go back to pick up the dropped item, it is outside the area which gives you a wanted level.

I'm going to be honest, I've had it up to here playing the Diamond Casino Heist and that is due to one thing, randomers! Now before you accuse me of being a whinging kid, hear me out! The only styles of play I use are Silent & Sneaky and The Big Con because those are the only two modes where you can walk away with all the money and without a scratch, if done right. But, many a times I have to rely on randomers because my friends don't play GTA Online as much as they used to. Now, The Big Con is by far the easiest way to play and you can even successfully complete the heist with no cooperation/coordination whatsoever.
The absolute bane of my existence is Silent & Sneaky with randomers! I have left soooo many heists because of randomers and in that time I could've completed two other heists! Why do you shoot the two cameras outside of the staff lobby instead of stunning one and walking right past it?! Why is it that when I've shot the camera by the elevatostairs to stop it seeing the guard's body, you go ahead and shoot the camera on the stairs on the way down to the basement when Lester has clearly warned you not to shoot another?! Some of these mistakes have been made by high level players. Finally, when we're in the vault and collecting the loot, why do you go off and drill the safes instead of leaving that till after all the loot has been collected?! All I'm saying is that if you have to make these mistakes for whatever reason, why not make them after we've collected the loot so that we don't have less time in the freaking vault, bearing in mind we're playing on hard mode so there's two hacks to complete instead of one.
I've learnt my lesson, I'm only playing The Big Con and Aggressive with randomers; I'd rather wait a year for my friend to come back if it means I play Silent & Sneaky. However, I chose to write this in the hopes that whichever randomer is guilty of these mistakes, reads this and stops doing that because I feel bad for the next person who is in the position I was in.
TL;DR? Randomers who play Silent & Sneaky Casino Heist, stop shooting the two cameras outside the staff lobby before we've even gone inside. Don't shoot another camera when Lester has warned you not to and DO NOT start drilling the locks before all the loot inside the vault has been collected. If in doubt, watch these videos before you ruin someone else's heist, thanks :). https://www.youtube.com/watch?v=6_9InXoEl1M&t & https://www.youtube.com/watch?v=oSkiN_sdg1Q

Okay, done most of the prep missions for the casino heist- nice! Lets do this last one so I can give my friend the money to buy an Oppressor MK 2 with the heist money between us. Aggressive style of the Diamond heist, no biggie; lets do the second to last prep mission.. oh its the one where you have to find the explosives in the wreckage? I'll get it done in NO time at all with the Oppressor MK 2. Its in sandy shores? Okay I'll fly over there, blow them up and use a boat to get to the surface of the wreckage. Blow all the goons at the dock to shit and grab the scuba gear, hop on a boat and drive to the boats aswell as th buzzard. I'll try sticky bombing them as diving off of the boat would be suicide, miss every sticky bomb like an asshat and die via the goons deadshot standard aim- epic. Loading screen and then I'll get them again with a heavy sniper; thats where I was dead wrong- rockstar had other ideas- infinite loading screen, that white circle didnt stop moving. Perpetually spinning whilst my ounces of hope slowly fade away. 10 seconds, it doesn't load. 20. 30. I just want to respawn, thats all... nothing. Absoloutely fantastic.
So I close application, pretty irritated to say the least, never had this problem before. Reboot GTA; 2 minutes to load into online, try to join my friends session forgetting it was invite only, gives me the notification that it is invite only and therefore I am unable to join press x to accept the noti and I am placed in a random lobby, finally accept the invite to join my friends session. Okay i'll fly back to the arcade with a hunter from my hangar this time, i'm not failing this shit again. Start up this awful mission, fly over to Paleto bay- set the docks ablaze, shoot down the two buzzards and the goons in their shitty inflatable boats. Land my hunter on the nearest rocks, jump out and swim down to the wreckage and luckily I spot the first explosive instantly. Pick that bad boy up and swim to the surface, two buzzards appear out of no where. The goons on the side of the buzzards shoot at me just out of reach of auto-aim. Try to free aim shoot them, impossible, die to the goons who are shooting me whilst the buzzard isnt even facing my general direction. Fuck you. Respawn on a random island about 50 metres from the wreckage, marvellous. I decide to dive into the water, what with the scuba gear and the 10ft drop not being fatal. Oh ho, boy was I was wrong. I jump like spastic with the skydiving animation and die INSTANTLY as I hit the water, fucking water! I was 10 feet up? I'll just respawn and kill the pricks, with a heavy sniper.
Nope. Actually I won't, because apparently this loading screen didnt want to allow that to happen, piece of shit white circle kept spinning. I felt like I was in limbo, stuck in a hellish time loop forced to gaze at a white bar that wouldnt stop chasing its tail like a damn uroboros. Minutes go by out of my desperation to simply get the mission over and done with- "Its not going to load, is it" said I, melancholy and shit. I close GTA despite my reluctance, turn off my PS4. Furiously crush a nearby Tic-Tac box and decide to make a rant about it on this subreddit.
Fuck you, Cockstar. ~ Sincerely, Me

I recommend looking at my GTA Online guides first before reading this Q&A.
Well set players: https://www.reddit.com/usexInfected_Virus/comments/epd9w4/solo_money_making_guide_for_new_and_well_set/
New players: https://www.reddit.com/usexInfected_Virus/comments/epdbs2/solo_money_making_guide_for_new_players/

Questions and Answers.

Q: Don't they have plenty of other guides like this on the GTA Online Mega Guide Thread?
A: This guide combines VIP work Headhunter, Special cargo, Vehicle cargo, Bunker, MC Businesses, Nightclub, Terrorbyte and Arcade with Master Control Terminal in one guide assuming everyone has those businesses. The Mega Guide thread definitely helped me make this this guide with me putting links of more additional in depth tips from threads on the mega guide on how to do special cargo missions, vehicle cargo missions, Bunker, MC Businesses and Nightclub. I also posted the Mega Guide link twice in this guide for more in depth info and more in depth tips such as the original heist guide for newer players.
Not many people know how to do the Biker business solo thus why they're giving up on it so that's one of many reasons why I'm making my own guide. I would love it if the mods put this guide on the GTA Online Mega Guide thread so it can get more attention and help other players. Also some but not all of the poor to rich type guides are outdated e.g no golden revolver headshot challenge or Maude's bounties with stone hatchet challenges that earn $250,000 upon each completion yet but they still give good information on how to get started so still look at those guides when in doubt. I'm looking to offer something new in 2020.
Q: What links did you use from the GTA Online Mega Guide Thread?
A: The main guide itself of course. https://www.reddit.com/gtaonline/comments/8xvpow/the_gta_online_mega_guide/
https://www.reddit.com/gtaonline/comments/5tzgfk/guide_for_vehicle_cargo_imports/
https://www.reddit.com/gtaonline/comments/4nszzk/crate_profits_v20_updated_to_111_crates/
https://www.reddit.com/gtaonline/comments/55vwyl/bikers_work_challenges_contracts_and_business/
https://www.gtaboom.com/wp-content/uploads/2017/05/bikersbusinesses.png
https://www.reddit.com/gtaonline/comments/920vm3/mine_and_your_experience_with_the_after_hours_dlc/
https://www.reddit.com/gtaonline/comments/ef40az/tips_for_new_players_look_at_comment/fby3g4c/
https://www.reddit.com/gtaonline/comments/31yrwz/mega_list_of_heist_tips_tricks/
Not sure this is from the Mega Guide but I'll link it anyways. https://www.reddit.com/gtaonline/comments/95crke/nightclub_profit_and_popularity_guide_not/
Q: Why doesn't this guide include the Hanger Business?
A: Because the Hanger business is designed to have multiple players in your CEO organization and collecting crates solo can take up to 10 minutes and you only make $10,000 per crate while you can be making $22,000 in three minutes doing Headhunter or $31,000 in three or four minutes doing Terrorbyte missions Diamond Shopping, Targeted Data and Robbery in Progress.
Q: I'm broke but I have all the businesses the main guide requires including a fully upgraded bunker or MC Businesses (Coke, Meth and Cash) and Nightclub with all upgrades and technicians.
A: Follow the steps on the main guide as normal and you should be all good.
Q: Why not do the Doomsday Heist instead for newer players?
A: The facility is expensive around two million dollars for one in a decent location whereas a high end apartment for original heist only costs $200,000 and you can get around $2,000,000-2,500,000 million after finishing the original heist assuming you got all the extra bonuses and done all of them on hard with having 55% cut on the last four finales and 60% cut on the Fleeca finale. Doomsday heist missions are also hard because of the insane accuracy of the enemy NPCs which will require plenty of resets such as starting the current setup or finale. So paying two million for a facility isn't recommended for newer players.
Q: Why no glitches such as vehicle dupes or Act 2 finale replay?
A: This guide is for players both new and well set who want to earn money legitimately. Money glitching may get you banned and reset so I don't want players to risk losing their hard work and progress.
Q: Does this guide have any glitches?
A: Mostly no except changing your MTU on console or suspending the task manager on PC to get into solo public lobbies to avoid griefers. Other than that; no.
Q: I bought the Criminal Enterprise starter pack and got a free Bunker in Paleto Bay, should I get it?
A: Despite the Paleto Bay Bunker being free it's still a big NO. This is because the sale to Los Santos is a very long drive which takes time to get to the destination. Also most resupply missions take place in Los Santos so it's a very long drive the get the supplies back to the Paleto Bay Bunker.
If not in a solo public lobby, there's a high chance a griefer can come after you on the exposed highway. Your much better off saving up for a Bunker in Farmhouse or Chumash since they're closer to the city.
Q: Speaking of Criminal Enterprise Starter pack; should I get it and if I do get it what should I do?
A: No; it's not worth spending real life money on the Criminal Enterprise Starter pack.
But if you do get it it already has a free CEO Office, MC Clubhouse in Great Chapparal and a Counterfeit Cash business in Grand Senora Desert. Since you have free $1,000,000 then buy a high end apartment in Del Perro and start the original Heist. Scroll up and follow the "My Guide To Get Rich For New Players" for more.
Q: I'm rank 25 but the host keeps kicking me out of their Heist finales or setups before it even begins, why is that?
A: Because they don't trust lower ranked players from finishing the heist because they have a bad experience from lower level players not knowing what to do or constantly dying thus spending plenty of times of constant resetting if a low level player keep failing or dying so they're not even going to bother with them and kick them out in a heartbeat.
Q: Wanted level won't go away at the Prison Break finale after everyone boards the plane even flying for hours still won't get rid of your wanted level?
A: I think it's glitched due to bad connection that if a person already has their wanted level flashing away and the person with bad connection still has their wanted level thus everyone still gets the five star wanted level. If that's the case then reset the finale, if still doesn't work then change roles and if it still doesn't fix it; your going to need a new crew preferably get players who are in your country or continent for better connection since they're in the same regional servers.
Q: I lost too much money while doing the Pacific Standard Heist?
A: Restart the Heist.
Q: How do I destroy all 10 Duggan shipments and should I even bother destroying them?
A: You need a Buzzard to destroy all of them on time. With enemies on boats and helicopters, fly behind them and spam rockets and they should be destroyed. Buzzard is quick enough to get from one end of the map to another. Hunter or Akuka also works as well if not better.
Yes you should destroy them especially doing the aggressive approach because the guards have armour and helmets that they take so much bullets to kill via headshot. On top of that, they also have and assault shotgun which shreds through your health in an instant. Destroying all of them means the guards won't have any armour, helmets and they'll only be equipped with a pistol.
Q: When should I start buying other properties such as a Doomsday Facility, Casino Penthouse and Hanger. Also when should I start buying vehicles such as weaponized vehicles, planes and supercars?
A: Once you have all the businesses required for this guide and you follow the steps everyday so you can save up on whatever you want to buy.
Q: Now that you mentioned the Casino Penthouse, should I get it so I can do the Casino Penthouse missions.
A: No, because the basic model costs $1,500,000 and the max payout assuming you finish all six missions is approximately $1,100,000 dollars. Only get it if you can do most of the steps on the main "Well set" guide.
Q: I read the main "Well Set" guide already and know what to do. I want to get my friend who's new to the game to make easy money, how much will they make?
A: Assuming your doing Step 1 Import/Export Method. Terrorbyte mission pays them $31,000 with Headhunter $21,000 and another Terrorbyte mission $31,000. They gain also $5,000 per fifteen minutes with additional $500 per successful source mission (crates or vehicle cargo) and $10,000 per sell mission. They'll make approximately $100,000 per cycle or approximately $300,000 per hour just for helping. They lose $250 per fifteen minutes though if the CEO dies.
Once you move to Step 3 Selling Bunker and MC Businesses; the associate will get 10% of the sale capping at $30,000 on top of the extra $1,000-5,000 bonus per successful mission. Best to sell Bunker as MC so your associate can get $21,000 instead of $10,000 per successful sell mission (assuming you only bought one supply batch and your Bunker is fully upgraded).
I maybe wrong on this though, if so then let me know.
Q. Is the Buzzard better than the Oppressor MK II for grinding and why should I get the Buzzard before the MK II Oppressor?
A: Overall as a grinder vehicle, I'd stick with the Buzzard because it can be consistently spawned using the CEO Interaction menu to spawn vehicles. The MK II Oppressor has a five minute cooldown after it gets destroyed or you returned it to storage and plus it remains at the location where you have picked up the vehicle cargo while doing source vehicle mission or on crate missions where all the crates is in a vehicle thus you have to leave the MK II Oppressor at the location. With the Buzzard you can easily spawn another.
The reason why you should get the Buzzard first is because it's cheaper and already comes with homing missiles whereas the MK II Oppressor costs more and you require the Terrorbyte to install the homing missiles which are limited to 20 and already costs a lot on top of needing to own a Nightclub which you need in order to purchase the Terrorbyte. I recommend getting the MK II Oppressor once your well set.
I know some will disagree with me here but personally I still use the Buzzard more than the Oppressor MK II for grinding with the Oppressor MK II being used for some missions and as a supplement grinding vehicle with it's better missiles and being easier to land in tight places.
Q. Why should I buy supplies for the Bunker and MC Businesses, isn't it more worth it to steal since your not paying $75,000 to purchase supplies?
A: Depends if it has upgrades or not. If it has full upgrades then it's not worth stealing because you can be doing other things such as doing Step 1 Import/Export guide while your businesses makes product in the background. Doing Step 1 I/E method makes more than enough money to pay off the supplies. You can also easily make money back by sourcing and selling vehicle cargo after you sell product from an MC Business or Bunker.
If it has one upgrade, steal supplies until you have three bars or 60% of the supply bar is filled and buy the rest.
If it has no upgrades then yes, I suggest stealing until the supply bar is full to make maximum profits.
Q: Should I get security upgrades on the Bunker, MC Businesses and Nightclub?
A: For Bunker and MC Businesses no. With Bunker if you stay under 50% of product you shouldn't be raided since buying one full supply batch gives you 20% of product. With the MC Businesses, make sure to register inside the MC Business and disband immediately after selling to prevent getting raided. For the Nightclub yes because there's less chance of getting raided. I have the security upgrade on the Nightclub and done the AFK method several times and not one time did I get raided, just make sure your not registered as a CEO or MC President while AFK.
Q: Why do the Steps have "Repeat 1-5 or 1-8" instead of "Repeat steps 1-5 or steps 1-8"?
A: To make it clearer so people don't get confused from "repeat steps 1-7" which some people will think but there's no step six or seven. Most people shouldn't get confused though but I want to make this guide as clear as possible so no one gets confused.
Q: Is it worth doing Nightclub popularity mission to keep your Nightclub popularity full?
A: No since the missions are pretty long and your much better off switching DJs every 90 minutes to prevent losing popularity and get back to what your doing quickly.
Q: Is selling two Post OP Van missions possible while selling the MC Businesses from Los Santos?
A: Yes if your quick and if your Coke, Meth and Cash is NOT in Elysian Island or Terminal because it'll be much harder or impossible to sell two Post Op Vans. Make sure the Coke, Meth and Cash is in northern Los Santos if you already bought those Los Santos locations.
Q: About the MC Businesses, I bought the ones in Paleto Bay or Elysian Island/Terminal, also my Bunker is in Paleto Bay or in a location other than Farmhouse of Chumash; should I move my MC Businesses to Sandy Shores/Grand Senora Desert and my Bunker to Farmhouse or Chumash?
A: Yes, if you have the money to do so because you have to re-buy the upgrades once you change locations although you get half on what you spent on the location back unless you got the Paleto Bay Bunker through the Criminal Enterprise Starter pack, which in that case, you can't get any rebates from moving to a different location.
Q: Other than MC Businesses and Bunker should I move my other businesses and Bunker away from Paleto Bay?
A: Yes again, since most missions take place in Los Santos. Don't be tempted to get the free arcade in Paleto Bay if your a Twitch Prime subscriber, instead buy one of the locations in Los Santos. With the facility, this is entirely up to you if you want to move.
Q: Ok but why should I NOT buy a business in Paleto Bay?
A: Because most of the resupply missions for the MC Businesses, Bunker and Arcade/Casino Heist setups take place in Los Santos and it's a long drive or flight back to those businesses. You might be lucky and a resupply mission takes place in Paleto Bay but overall it's not worth it. Also sell missions are very far from Los Santos should you choose to sell remote and unnecessary amount of time is being wasted in trying to get back to collect another vehicle while you already reached that second vehicle if you sell from the Sandy Shores businesses.
If your not in a solo public lobby, there's a higher chance griefers can come after you and destroy your product since your open on the highway and your most likely not even half way to your destinations when you could've arrived their if you sold from the Sandy Shores MC Business or Farmhouse/Chumash Bunker.
I think I mentioned something like this in an earlier question above.
Q: I want to move my Bunker, MC Business and Arcade out of Paleto Bay but don't have the required funds yet although I'm more than willing to re-buy upgrades for them. How do I still do solo sell missions from Paleto Bay.
A: With the MC Businesses assuming you have the upgrades, sell in the Blaine County area. With the Bunker sell remote to Los Santos as normal but make sure your in a solo public or peaceful grinder lobby to avoid being griefed. Still buy supplies though since you still make a profit (except on the Document Forgery) if they have full upgrades. Half upgraded, steal until three bars and no upgrades steal until bar is full. Good luck with the long drive back from Los Santos.
Q: Why do players buy businesses in Paleto Bay anyways?
A: Because players get duped in buying the cheapest location for the Bunker and the Arcade. Another reason I hear is because to get away from other players and tryhards/griefers, you can go into a solo public lobby to fix this problem. Don't be tempted at any costs in getting a Paleto Bay business.
Personally, I have a medium house with a six car garage there only because I have plenty of money and only wanted a property in Paleto Bay just for the sake of it.
Q: A majority of players suggest getting the Farmhouse or Chumash Bunker but which one of those two should I get since I know they're both closest to the city. I'm torn apart on what to choose from?
A: This is a hard choice to be honest, I can see why many people suggest since they're closest to the city and both are next to a freeway. Since the guide suggest buying supplies, you'll be doing sell missions most of the time.
Here are the sell missions you get and which location is best for which missions. Feel free to disagree with me here, this is from my experience from doing Bunker sell missions.

Phantom Wedge mission: Slightly for the Farmhouse Bunker because most of the drop offs are in eastern Los Santos and the Farmhouse Bunker is located on the eastern half of the map.
Insurgent Pick Up Custom delivery to one location: Probably even because the drop off locations are in mixed east and west of Los Santos.
Insurgent Pick Up Custom multiple drop offs: I think slightly for the Chumash Bunker for this one because most of the first drop off is also located on the western half of Los Santos.
Dune buggy: Probably even for this one since you can take whatever drops feels closest to you.
Monster truck mission: Probably the Farmhouse Bunker because most of the drop offs take place on the middle to eastern and south eastern parts of the map. Some of the drops does favour the Chumash Bunker though.

I maybe missing some missions though so let me know which ones I missed.
Price.

Chumash: $1,650,000.
Farmhouse: $2,375,000.

Which one should I get?: Personally I'd go with the Farmhouse but it's a bit more expensive than the Chumash which is another great location.
Q: A griefer is coming after me or the vehicle carrying the product got stuck and there's literally no way to get it out or the plane drop mission is glitched thus making it impossible to drop cargo and finish the sell mission, because I spent lots of money buying or lots of time collecting supplies, what should I do?
A: Close the application if on PS4 or dashboard if on Xbox One or find a new session on all platforms. You only lose ten percent of product but at least all that time or money isn't wasted and you get to keep most of the product.
Q: Should I sell in a populated lobby?
A: Yes but only if your certain the other players there are peaceful otherwise a griefer may come after your cargo. Make sure your in a grinding lobby just to be safe.
Q: I have three other players with me in my organization, I know how Step 1 I/E Method works but how should I do the cycle?
A: Instead of selling the car, source the vehicle instead until you have four top range vehicles stored in your warehouse and repeat the cycle since there's a twenty minute cooldown per vehicle sold in one go, so since you sold four vehicles, you'll have a one hour cooldown.
Q: Is selling a full 111 crate warehouse possible solo?
A: Yes, I've sold 111 crates several times solo no problem. The only problem I had was the plane mission with the enemy Buzzard and Valkyrie variant. All I did on that mission is get in the Titan, scout the area with a Buzzard or Hydra, destroy the enemy NPCs, drop the crates off and done. Three Brickades and one tug boat sales are very easy to do.
Q: Should I get the vehicle upgrades for selling the crate warehouse missions?
A: Armour upgrades don't provide extra protection from rockets fired from griefers in MK Oppressor but it may provide extra protection from enemy NPC bullets and explosive rockets from Hydra or Lazer. Bulletproof tyres are useful on the Brickade and speed upgrade is useful on the Tug. Jammer upgrade is near useless on the plane especially if your in a solo public lobby.
The upgrades worth getting are the speed upgrade on the Tug and bulletproof tyres on the Brickade.
So should you get upgrades?: Up to you really.
Q: You mentioned buying supplies from the Master Control Terminal from the Arcade but should I sell my product from there though?
A: No because you have to go all the way to the business your selling from which wastes some sell time just trying to get there. Your much better off selling from the actual business location because the sell vehicle is right there most of the time.
However, not all vehicles spawn at the business location such the Dinghy boat, Dodo plane or Buzzard for the MC Businesses and the Tug and Plane for the crate sell missions. The sell vehicles for the Bunker are always located next to the Bunker, the sell vehicle for the Nightclub is always located next to the Nightclub. You still need to actually go to the vehicle warehouse to sell a car though.
Q: Why do you suggest using the Bati 801RR, isn't it the exact the same as the Bati 801?
A: The Bati 801RR actually has better acceleration than the Bati 801 but they still share the exact same handling and top speed.
Q: Did you have any help while making this guide?
A: A little bit from Youtubers and some threads from the Mega Guide, other Reddit posts and the GTA Forums but I mostly made it with my experience in grinding the businesses. Also the tips I post are mainly from my experience in selling.
Q: Who does this guide cater to?
A: Players who are new or well set.

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