Win7 64-bit
Instance 1:
I was down in a lab. I armed and threw a grenade at two zombie soldiers. The grenade exploded and at the same time the game crashed with the standard Windows “Cataclysm has stopped working” message.
Instance 2:
I killed a zombie grenadier in the lab. When it died, it left behind 2 active grenades and 1 active teargas grenade. Crash upon explosion.
Instance 3:
I load the game, and just for testing purposes I arm and throw a grenade. Crash upon explosion.
Note: I tested other grenades and explosives, and these do NOT cause a crash: flashbang, incendiary, C-4. Only the vanilla grenade causes a crash.