Diamond Casino Heist - GTA BOOM

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.

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

• Practice casino fingerprint hacking
• Easiest way to complete Silent and Sneaky
• Casino Heist Big Con Gruppe Sechs
• Casino Heist Aggressive Sewer Entrance
• How to make the most money out of the Diamond Casino Heist
• Casino Heist Sewer Escape
• Casino Heist Heli Escape
• Security Intel

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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

In spite of how long GTAO has been a thing I still see daily posts about people who struggle to make money in GTAO and there are always new players trickling in. Since the game has been out for so long some players might also be concerned what info is outdated and what still matters. I've been playing on and off since the import / export update and until the Diamond Casino I've never completed a heist because the originals required 4 players and randoms sucked so I have no advice there. None of what I'm going to talk about is a glitch.
To start, 2 huge quality of life tricks to know
Getting a solo lobby: Can confirm this works on xb1 and should work on ps4, no idea about pc.
Requires a hard wired connection, meaning you have an ethernet cable running from your router to your console.
Step 1: Before opening GTA unplug your ethernet cable and let your console pick up a wireless connection
Step 2: Open GTA and get into any online session
Step 3: Plug your ethernet cable in while walking around
That's it. There should be a momentary disruption that splits you from your lobby. It will be very hard for other players to join your lobby unless they are invited or join you off your crew tag. You may get booted from GTAO but in my experience if it doesnt work the first time it usually works the second. This trick has worked for years and will probably continue to work for the life of GTAO
Idle forever in GTAO: Go into any building you own with a security camera or TV. Watch the security camera or the TV (must zoom in in tv)
That's it, very useful for turning supplies into products at MC biz, bunkers, or night clubs without having to actually do anything. Just walk away for a few hours then buy more supplies as needed until the biz is full.
Making money:
Active money makers: vehicle warehouse, special cargo warehouse, hangar
Vehicle warehouse is typically considered best because its missions are almost all easy and quick. You can source only high end cars by filling your warehouse with all the low to mid range cars. The game wont have you source the same license plate twice so if you only sell high end cars eventually you will only source high end cars. Another trick is to use a cargobob to transport the cars to risk less damage.
Cargobobs are very slow so if you have helicopters chasing you then you can still take plenty of damage. I recommend getting to max altitude so you dont need to slow down to gain altitude when running from the helis. Delivery missions almost never have helis so cargobobing is safe and easy. The last alternative is to trigger the helicopters and cars chasing you and kill them. Typically there are 3 or 4 waves of enemies before you can proceed unmolested.
Payout is 80k - damage to car
Supply crates warehouse: is very tedious but a great payout. Roughly 1/3 supply missions will let you source all 3 crates in 1 truck. The rest of the time you have to make 3 trips which is a huge pain. I believe the payout of a large warehouse is 1.7m after you deduct the cost of the crates. This would be easy to google if you want
Would not recommend if you dont have an oppressor mk2 or at least a buzzard. Personally with the oppressor mk2 I think this might be better active money than cars considering 1/3 of missions dont require 3 trips. Much less instant gratification though.
Hangar: I did very little with the hangar. It's a lot like crates but all the missions use aircraft and are typically harder than car / crate missions. Would only recommend for people who absolutely love flying.
Passive income:
Mc businesses and the bunker all work the same way. You buy or steal supplies that get turned into product over time. Profitability goes in the order of bunker (no research), cocaine, meth, counterfeit cash, weed, and I dont even remember the last one because it's barely profitable buying supplies.
Location matters, the best locations are in the middle of the map, the grand senora desert region. City locations can make you go all the way to paleto bay and vice versa.
Playing solo you want to make sure you sell before your product is more than half full to limit the number of delivery vehicles.
Buying supplies hurts profits but the time investment of stealing supplies isnt worth it. That time is better spent on cars or crates. The power of the passive income is to have several going at once. The exception to this is if you have help. The more people on a steal mission the more supplies the mission generates.
Nightclub: requires you already have passive income set up. Let's you generate free product without worrying about supply. Product generates very slowly in relation to other businesses. If you spend a lot of time idle at your security cams though this is a big winner.
Getting raided: Your bunker / mc businesses will always have a hidden timer ticking whenever you are an MC president in free mode and outside of a building and not in a mission. Security upgrades increase this timer and you can limit raids by disbanding your MC before you leave buildings and right after sales. Done right and you should only lose seconds per sale and lose no time when resupplying.
Diamond city casino heist: Will probably take 3-4 runs to pay for the arcade if running with 4 players. Heists are a much better experience with friends imo and really only recommend doing them with friends in general. Arcade location matters slightly. There are a few prep missions that will always be in the city. Would only recommend for players who already have a strong income because the passive income is shit for the money you have to invest.
Big con / group sechhs is easiest. Nobody bothers you until you get to the top of the elevator and you can easily get to the noose outfits upstairs once you have done it a few times and walk right out whatever exit you like.
I recommend leaving from the staff entrance. Theres an underground tunnel nearby that you should google and makes losing the 5 stars a joke.
Always do the duggans optional prep. The difference in guard weapon and armor quality is massive. This is exceptionally important for the aggressive and stealthy approaches.
Always hire cheap gunman / driver and expert hacker. The duggans mission make guards tissue paper, and the tunnel makes it so any vehicle is fine as long as you can get in there.
You can afford a cheaper hacker if you have 4 people who know what their doing, or 3 with artwork because its quicker.
The tunnel also eliminates the need to spend money on a clean car or gunman distraction.
I hope all of that will be useful to a few of you and if anyone wants to comment any other good advice there are still people who could use it
Edit: even though a lot of people are shitting on the newest heist it's a strong contender for the best active income at this time. Unlike the original heists your passive income buildings will be generating product while you do the preps and those that have been running the heist a lot claim to be knocking the preps out in under 2 hours once getting used to the missions. If you can do them in that kind of time your income is much better than crates or vehicles