This has happened multiple times over the past 3 days, I'm in the NW Airfield on official server LA 4410 and every time a zombie begins to notice me, or I shoot my silenced mlock at their head it crashes the game, I load back in to the small amount of damage I take during logoff and less than 5 minutes later the game crashes again without the zombies. Have tried this on two different LA servers on 2 different accounts and it still happens. In one instance the game crash had me load in about 10 feet in the air. I am able to get about 20 min game play every few hrs or so before it crashes again.