The Diamond Casino Heist is one of the most thrilling and rewarding missions in Grand Theft Auto Online, allowing players to execute a high-stakes robbery at the Diamond Casino. This guide will walk you through the steps to initiate and prepare for Forest Fortune the heist successfully.
Step 1: Requirements
Before you can start the heist, ensure that you have a few prerequisites in place. First, you need to own a Kosatka submarine, which serves as your base of operations for the heist. The Kosatka can be purchased through the Warstock Cache & Carry website in the game. Additionally, you must have completed the “Pacific Standard Job” heist to unlock the Diamond Casino Heist.
Step 2: Accessing the Heist
Once you own a Kosatka, head to the submarine, which can be found in the ocean near the coast of San Andreas. Enter the submarine and interact with the planning screen. This is where you will begin the process of setting up the heist. You can choose to play solo or invite friends to join your crew.
Step 3: Planning the Heist
After accessing the planning screen, you will be presented with several options for the heist. You can choose between three main approaches: the Silent and Sneaky approach, the Aggressive approach, or the Big Con approach. Each method requires different strategies and equipment, so choose the one that best fits your playstyle.
- Silent and Sneaky: This approach focuses on stealth and requires players to avoid detection. You will need to gather disguises and hacking equipment.
- Aggressive: This option is straightforward and involves a full-on assault. You will need heavy weapons and armor to take down security forces.
- Big Con: This method involves deception and requires players to obtain disguises and equipment to infiltrate the casino without raising alarms.
Step 4: Gathering Intel
After choosing your approach, the next step is to gather intel on the casino’s security systems. This can be done by completing various setup missions, which may include stealing vehicles, hacking terminals, or gathering disguises. Completing these missions will give you crucial information about the casino layout, security guards, and camera placements, which will help you in executing the heist effectively.
Step 5: Final Preparations
Once you have gathered enough intel, you will need to purchase the necessary equipment for your chosen approach. This may include weapons, disguises, hacking devices, or getaway vehicles, depending on the strategy you selected. Ensure that you and your crew are well-prepared and equipped before proceeding to the heist itself.

Step 6: Execute the Heist
After all preparations are complete, you can launch the heist. Gather your crew, head to the Diamond Casino, and execute your plan. Communication and coordination with your team are crucial during this phase to ensure a successful robbery.
Conclusion
The Diamond Casino Heist offers a unique and engaging experience within GTA Online. By following these steps and preparing adequately, players can maximize their chances of success and enjoy the thrill of one of the game’s most exciting missions. Good luck, and happy heisting!