Diamond Casino Big Con Guide: Step-by-Step Heist Walkthrough 2026

Master the Diamond Casino Big Con approach in GTA Online for 2026 with this detailed guide. The Big Con offers stealthy entry via disguises, high payouts, and replayability. Perfect for solo or crew play, it minimizes heat while maximizing loot.

Updated for current patches, follow these steps to execute flawlessly, grab the primary target, and escape rich. Prep, setup, and finale tips included for optimal runs.

Step 1: Prep Your Crew and Arcade

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Analysis panel
Buy an arcade as your base; hire skilled associates.
  • 1. Lester for planning
  • 2. Choose high-skill gunman like Karl Abolaji
  • 3. Driver: Karim Denz
  • 4. Hacker: Rickie Lukens upgraded

Step 2: Scope the Casino

Gather intel on vault contents and
security.
Step 2: Scope the Casino
Gather intel on vault contents and security.
  • 1. Enter as tourist
  • 2. Locate security cameras
  • 3. Identify guard patrols
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Step 3: Buy Disguises and Tools

Analysis panel
Select Gruppe Sechs or NOOSE outfit for entry.
  • 1. Purchase from cashier
  • 2. Get duffel bag for cash/emerald
  • 3. Thermal charges if needed

Step 4: Infiltrate and Navigate

Use staff lobby route post-disguise.
Use staff lobby route post-disguise.
Step 4: Infiltrate and Navigate
Use staff lobby route post-disguise.
  • 1. Hack keycard door
  • 2. Lose cops via tunnels
  • 3. Drill to vault

Step 5: Steal and Escape

Pros

Grab bonds or cash; execute getaway.

Trade-offs

Grab bonds or cash; execute getaway.

Grab bonds or cash; execute getaway.
  • 1. Fill bags quickly
  • 2. Call Kosatka sub
  • 3. Evade NOOSE pursuit

Elite Challenge and Max Payout

Pros

Aim for under 15 mins total;

Trade-offs

expect $2M+ in 2026.

Aim for under 15 mins total; expect $2M+ in 2026.

  • 1. Perfect stealth
  • 2. Quick vault drill
  • 3. Clean getaway

Common Mistakes to Avoid

Fact: Steer clear of these pitfalls for Key: Common Mistakes to Avoid
Steer clear of these pitfalls for success.
  • 1. Don't alert guards early
  • 2. Upgrade hacker first
  • 3. Practice setups solo