This guide shows you how you complete the Diamond Casino Heist scope out missions. By doing them, you'll find all the different access points and POIs to unlock thee three casino heist approaches — The Big Con, Aggressive and Silent and Sneaky.
With the release of the Diamond Casino Heist update on December 12, 2019, Rockstar decided to add a variety of approaches you can choose to carry out the heist itself. When it debuted, this heist was one of the most complex ever delivered.
In order to carry out the Diamond Casino heist finale, you must go through several heist preparation missions. Among the mandatory prep missions are optional prep missions as well, which you can choose to do just to make your heist finale easier. All the Access Points and Points of Interest that you need for the Diamond Casino Heist are set out for you below.
You can buy a casino model for your prep board for GTA$130,000 which shows the locations of all the Access Points. However, even that is not enough as it still does not help you pin-point the exact locations of some of the Access Points that are outside the casino.