The undead horde approaches! Fight for your life in "Der Riese" (Zombie Factory), an all-new Zombie map set in a secret Nazi research facility featuring the Pack A Punch Machine, a device capable of upgrading weapons at the touch of a button. Use the teleporters to escape the vicious Hell Hounds and pray that the Wunderwaffe will appear before it's too late. This map includes 10 new Achievements/Trophies.