Reach wave 6 on any Horde Map without picking up a Primary or Secondary weapon.

Kill all Zombie Hand collectibles.

Drop a pallet of Artillery Shells on a Zombie

Perform a Takedown on a Blind Screamer.

Complete the weapon mastery for 3 weapons.

Kill 5 Heavies with takedowns.

Kill 20 zombies with Electric Punch Special Attack.

Kill 50 Zombies in a row without missing a shot.

Kill a Sniper whilst they are jumping between vantage points.

Change your characters appearance, such as with a hat or costume.

Kill a Suicider with his own explosives.

Complete the Campaign on any difficulty.