Here is where you will find the GTA Casino Heist expands mission, as well as all access points and points of interest of the Diamond Casino. Access points include doors and entrances to the building, and points of interest are security cameras or guards that could make it difficult for you when the burglary takes place. The GTA Casino Heist expansion mission includes 11 access points, as well as various points of interest. You won’t have to explore the entire Diamond Casino, but you will need to meet a minimum requirement before your job is complete and you can always return to the Casino to continue exploring the joint later. Lester wants you to go to the casino and take pictures of the hotspots and points of interest, so you know what you are dealing with. To start the GTA Casino Heist expansion mission, you will need to select the mission from your planning board in your arcade basement. Getting into the GTA Casino Heist reach mission? If you’ve bought your arcade property and started planning the heist in GTA, you might be ready to explore the casino.