needs multiplayer + player controled humans shuld be able to put down a flare or something to gather other humans to that loc\tion (but maby zombies aswell)
when your human you shouldn't be "converting" zombies just killing them and instead searching for surviors/other humans therefore makeing the human more a defence/survival type thing. (oh and if there is a zombieman 2 it neeeeds PVP)