Download this pic: http://r28.imgfast.net/users/2813/27/14/12/album/cod4-w11.jpg it explains everything
We have 100 health and the guns do different damage on different parts of the body...
Sometimes it certain games it seems like I'm alway getting hit and wonded but never seem to die. Then some times I just kinda lay down and die as soon as someone fire at me.
Probably just due to the signal fluctuating