Everytime my friend gets unconscious and I try to CPR compress he stands up as if he were conscious. He can run around, spin camera etc., but on his screen he's still unconscious. The cause of unconsciousness varied, it was getting hit by a zombie, shot or lack of food/water (I can't remeber exactly). I think that in every case saline bag IV helped, but I'm not sure. But still, CPR compress just bugs the character. Waiting does not help, relogging kills the character.