When I try to load the Mission Maxwell in the campaign, the game crashes with a windows message "Arma 3 not responding"
The same issue occurs when I try to load the NATO training mission from "Ukazky"
Also, the same issue occurs when I play "Firefight on Stratis 2" (the convoy ambush) from Arma 3 workshop - the mission loads, but when the first convoy truck appears (probably arrives at a mine), the game crashes.
It seems, that the game crashes in the event of too many graphical effects (explosions, fire, ...)
It is very unlikely, that it has anything to do with my HW. I have recently upgraded my computer - the only components, that stayed were harddisks (with Arma3 installed). Exactly the same issue happened on my legacy computer as is happening on my current HW.