In master mode when you can spawn a helicopter and try it out game loads 11GB of ram, very fast goes to 16GB and crashes/freezes or even causes blue screen of death so the whole pc goes south. It happens in 2-3min max, no matter what the settings are (the lowest or the highest). I have 16GB of RAM, It's already may be not enough for modern games (32GB is more prefareble), but think the majority of players still have 16GB.