This would make players more caucious when fighting in deathmatches, if you could wound players depending on the body part you hit, shoot the left arm, you lose the ability to use weapons in that hand, if you shoot the right arm, you lose ability to shoot anything in that hand, you must heal yourself if you wish to fix them, if you shoot the chest, it takes 3 or 4 shots to die, if you shoot the head, its instant, if you shoot any of the feet, you are stuck in crouch for a certain ammount of time
I can see it now, players walking up a hill hiding behind barriers, and actually having to be cautious with there actions
jumping in and out of barriers...taking a few shots and hiding
puts a bit of 'realism' in the game, would also be pretty fun