Diamond Casino Heist: Step by Step
- •Team heist: best with 2 friends on voice chat.
- •Requires an Arcade property (~$1.2M+) in Los Santos.
- •Three approaches: Silent & Sneaky, The Big Con, Aggressive.
- •Payout up to ~$2–3M on hard difficulty when done cleanly.
- •Long setup chain: plan a full evening with your crew.
What is the Diamond Casino Heist?
The Diamond Casino Heist is a multi-setup team robbery of the Diamond Casino vault in downtown Los Santos. You pose as maintenance, guards, or storm in with guns. Ddepending on approach. It is one of the highest-paying team heists but needs an Arcade, 2–4 players, and more coordination than Fleeca or Cayo Perico.
Tip: Solo grinders should finish Cayo Perico first. Casino is for when you have reliable friends.
Step 1: Buy an Arcade
Open your phone → Internet → Maze Bank Foreclosures (or Dynasty 8). Purchase any Arcade location. Cheapest options are around $1.2 million; Vinewood locations cost more but look nicer. The Arcade is required to access Lester's planning board for this heist. You also get playable arcade cabinets inside: cosmetic fun, not required for the job.
Tip: Location does not change payout. Buy the cheapest Arcade if money is tight.
Step 2: Meet Lester and start scope
Go to your Arcade and interact with the planning board in the back office. Lester introduces the target: the casino vault. Launch "Scope Out the Casino", you photograph entrances, guards, vault layout, and optional points of interest. This unlocks approach options and prep missions.
Approaches:Take photos of the main entrance, staff door, security tunnel, and vault cameras on your first scope run.
Tip: Scope once per approach change. You do not need to re-scope every finale replay.
Step 3: Choose your approach
Silent & Sneaky: Dress as maintenance or use gas to knock out guards. Minimal fighting if executed well. Harder to coordinate but best payout potential. The Big Con: Disguise as guards or bugstars exterminators. Social stealth. Bbluff past NPCs. Popular with 2-player crews. Aggressive: Shoot your way in. Fastest to understand but heavy resistance and more armor consumed.
Approaches:Big Con and Silent are most popular for experienced duos. Aggressive is a backup if stealth keeps failing.
Tip: Pick ONE approach and commit. Mixing prep from different approaches wastes time.
Step 4: Required setup missions
After choosing an approach, mandatory prep appears: weapons loadout, getaway vehicles, vault drills or explosives, disguises (Big Con/Silent), and hacking practice. Do all required setups marked on the board before launching the finale. Optional prep (Duggan shipments, security intel, power drills) improves odds but can be skipped once your crew knows the route.
Tip: Always do the hacking practice minigame prep. Ffailing the vault hack in the finale wastes the whole run.
Step 5: Optional prep worth doing
Security Intel: shows guard positions on the map during finale. Duggan Shipments: weakens guard armor (Aggressive). Vault Keycards: faster vault access. Power Drills: quicker looting if you take the slow-grab approach. For first-time crews, do Security Intel + Keycards. Veterans often skip optional prep for speed.
Step 6: Finale: infiltrate the casino
Launch the finale from the Arcade board when all required prep is done. The game matchmakes your crew into an instance. Silent/Big Con: enter in disguise, reach the staff tunnel or elevator to the vault floor without triggering alarms. Aggressive: fight through the lobby and basement to the vault. Alarm = more guards and worse escape.
Tip: Designate roles: one hacker, one crowd control, one loot carrier. Stick to the plan on voice chat.
Step 7: Vault and loot
Inside the vault you grab cash, gold, artwork, or diamonds depending on what spawned. Gold pays the most per slot but is heavy. Ccoordination matters for 2–4 players filling bags. Hacking minigames open deposit boxes. On hard difficulty, loot values increase significantly. Grab the maximum your bags allow before the timer and gas pressure force you out.
Approaches:Gold duos: one drills boxes, one grabs piles. Do not leave gold behind if this is a money run.
Tip: If someone fails the hack twice, consider restarting from checkpoint rather than wiping the whole heist.
Step 8: Escape and payout
Exit via the staff tunnel, sewer, or roof depending on approach. Reach the buyer in the getaway vehicle without dying. Death with a full bag can cost loot. Payout splits among players. 2 players often take home $1M+ each on hard with gold. Cooldown applies before you can run the finale again.
Tip: Snacks and heavy body armor before the finale. The last firefight kills unprepared crews.
Common mistakes
Buying an Arcade before you have a regular crew. Skipping hacking practice. Mixing approaches mid-setup. Triggering alarms on Silent when one player sprinted in front of cameras. Splitting payout unevenly without agreeing beforehand. Uuse the heist cut screen before starting.