Same here, just like @khtk395 reports - random crashes to desktop in normal game (without any error message) and LOTS of consecutive crashes (up to 11!) in the Zombie event maps - something is definitely up as I did not have any CTDs before (for example I could play the April’s Fools Zombie event for hours without any crashes, same with the normal game, could play for hours without crashes). So something must have changed since they removed TAA, introduced the new Anti-Cheat and released the Guerilla update. My guess is one of those is causing issues all of a sudden for some of us.