I think it would be a nice touch to the game world if after a set period of time deceased players would rise up and become AI controlled zombies themselves. They would shamble around with whatever gear they had at the time of death. Other players would be able to kill them and loot as a normal player. Give it a timer of 30 minutes or so. Reanimation could be prevented by burning the body (give those matches something to do) May help address some issues with zombies respawning and adds a nice touch.
