Behind a Veil of Darkness
Prolog
If you don't kill them, they learn. Yeah, I know, they're supposed to be on a sub-moronic level, but they learn. I've seen them with clubs, machetes, pieces of pipe, and primitive spears, don't try to tell me they are mindless, they're not! The worse thing is they don't quit as long as they can see you; they just keep coming until they collapse. Get out of their vision for a moment, or two and they will forget about you if they notice something, or someone else. Camouflage works if you are standing still and quiet, but no amount of camo helps if they see you moving. I've seen them give up a fresh victim in order catch another they see moving, why do you think it spread so fast? They seem to be vision oriented, but they respond to sound also. They don't feel pain, or maybe they do and it just pisses them off. If you don't hit a vital organ with your first attack go for the head immediately; in fact, don't even try a body shot, go for the head always. That bullshit about severing the spine at the base of the skull with a rifle, or pistol shot? Only in wet dreams my friend, maybe at close range with a shotgun, but are you willing to bet your life on it? You might be able to hit something that small at the rifle, or pistol range, but that paper target isn't running after you full speed and trying to eat your ass.