They also become faster and appear in higher numbers. As you progress through the rounds, the zombies require more and more damage to kill them. They can be shot (and headshot for more points), stabbed, blown up by grenades (although this may only blow off their legs), killed in traps you activate or by bouncing betties that you can place. Zombies themselves can be killed in multiple ways. The game ends when all players are incapacitated or have been killed by zombies. Some of the more powerful weapons are found in this box. Each map also has the Mystery Box, which can give you a random weapon (or teleport across the map if you're unlucky and not on Nacht der Untoten). You start with a pistol and a knife for melee, new weapons can be found at set places on the wall around each map (you'll see a chalk outline for a gun that you can buy off the wall). You earn points by killing zombies and rebuilding the window barriers that appear around the map (the zombies will be tearing these down to get in to you). You also use them to open up doors and remove obstacles to allow you access to more of the map. You're also trying to gain points that allow you to buy new weapons and perks, which should hopefully let you survive longer, or you can spend them on activating traps to kill zombies that come too close. The number of zombies and general difficulty is determined by the round number that you are on. In it, your goal is to survive against an infinite horde of zombies for as long as possible. Map Pack 1 didn't come with any new achievements, but 2 and 3 did. The base game has the map Nacht der Untoten, Map Pack 1 introduced the map Verruckt, Map Pack 2 brought Shi No Numa and Map Pack 3 supplied us with Der Riese.

Cod waw zombie maps