GTA Online Diamond Casino Heist Scope Guide - GamersHeroes

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

​
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