Every 15 minutes or so of gameplay, the game freezes completely. In task manager, it says "Arma 3 Beta is not responding" and I have to force quit the game. Next time I try to start the game after a freeze, I double click the executable, and the game freezes before the first "Arma 3 Beta" logo.
The second restart works as normal and I have 15 or so minutes of gameplay before next crash.
Once in a while (every 5 or so freezes) the sound loops along with the freeze and after a couple seconds, BSODs my computer with the error "A clock interrupt was not received on a secondary processor within the allocated time interval".
This has been happening in both Alpha and Beta but I waited to report it because I was hoping it might be resolved in the Beta release. {F20258}