When player dies, corpse should turn as a NPC zombie. It would be fun, if u can observe for while what your dead character does. Perhaps zombie should drop 75% of all gear what player carried to that point where player died, but i would like the idea, that zombies have some loot too. This is one way we are able to "spawn new zombies" in to the game. It can be like that when zombie hit you, you will get infected and character will die by infection. dead infrected character will resurrected as a nonplayable and start attacking to your teammates. What you think?