I agree with you. Only problem being: There are no dog tags or identification marks or cards in DayZ. There actually are pretty good suggestionon an ID-card being added into DayZ. But when there's nothing toidentify the player with, then it's just unrealistic identifying him by checking his pulse. And of course it would matter because taking revenge or avenging someone wich you don't even have a name of is a bad in terms of game interactions to me. (For example you're trying to take revenge on the guys who just killed youb y being friendly to them at first but they identify you by your name.) You could also just camp his corpse and wait for him to come back. ;) (If the body isn't more than 10min away from the spawn; and if, you'll probably never see the guy again anyway.)