In order to start the heist planning, the player has to first complete a setup mission from the Arcade property. Once this setup is done, the Arcade is operational and the player can begin the Casino Heist.
Before players can start the Diamond Casino Heist they will need to register as a CEO in GTA Online, or become an MC president. If you're short on cash you can always register as a VIP at a cost ofR$50,000. Once you're a CEO, MC President or VIP you will then need to buy an Arcade from Maze Bank Foreclosures.