Once you’ve made your purchase, head over to your new property to deck it out with new gear. Insert Coint – Located in Rockford Hills.There are a few different properties to choose from, which can be found on EyeFind, the in-game web browser. He’ll let you know that in order to get things rolling, you need to buy an arcade property. To initiate the heist, first find Lester in Mirror Park, which is located in the East Vinewood neighborhood. GTA Online Diamond Casino Heist – Scoping it Out Step One: Buy an Arcade In this GTA Online Casino Heist Setup guide, we’ll broadly run down the major parts of the prep stage, including what arcades are available for purchase, how to case the joint, and the three different approach options. In addition to choosing an approach to the mission, there are several steps that you must take before you’re able to embark, including buying an arcade and hiring a crew. Last month, Rockstar released the Diamond Casino Heist for Grand Theft Auto Online. It’s been hailed as the the game’s biggest and most elaborate heist to date.