Kill all zombie boss types

Take 2500 zombies down with you using the Vengeance perk

Survive for more than 2 minutes in survival mode

Deal the killing blow to a Grenade Zombie with a grenade

Kill 500 zombies with a melee weapon

Kill 25 zombies while remaining inside one Turbine area

Finish off a boss zombie with the crowbar

Get 10 zombies sucked into one Meat Grinder

Kill 50 zombies within a ten second period

Kill 150 running zombies in a single game

Kill at least 250 zombies using sentry guns

Kill over 5000 zombies in one game

Collect 10 zombie-attracting Rammers in one game

Burn 800 zombies with the Flame Thrower

Kill 100 zombies in Survival Mode without moving from start of game

Run a marathon length 26 miles/42 kms

Perform 20 remote grenade detonations

Kill at least 10 zombies with one grenade

Kill 1000 zombies in any single game without ever picking a perk

Complete all the story missions

Set fire to 50 zombies that are being attracted by a Rammer in a single game

Complete the Point Defense mission

Complete any mission without taking any zombie damage

Collect at least 20 perks in a single game