Only Headshots can destroy the zombies.

Gunplay has recieved some polishing. Guns now have a horizontal recoil and sway when fired.
Their sounds have also recieved an upgrade to sound powerful and meaty.
I've wanted guns to make you feel powerful. The relationship between the player and his gun play a special role.

Source and More information: Guns and Cutscenes (M16, AK47, UZI)

Author: indieDB.com