- Team Red
Reach Wave 50 in an On-Line Barricade game
- Targeted
Kill 10 minigun bosses in one game
- Team Elite
Reach Wave 40 in an On-Line Barricade game
- Weapons Expert
Get Dexterity, Intensity, Accuracy, Heavy Ammo, Improved Loadout then get 1000 kills
- Shock Expert
In an On-line coop game, play as the Scout and detonate 5 flash bangs in a single game
- Boss Eliminator
Kill 50 bosses in one or more On-line coop games
- Team Soldier
Reach Wave 30 in an On-Line Barricade game
- Butchered
Kill 5 butcher bosses in one barricade game within the first 25 waves
- Headhunters
In an On-line Coop game, kill 20 bosses with your team in a single game
- Rhylos' 50
Collect a total of 50 achievements
- Fenced
In an On-line Coop game, hold out until wave 21 in Factory Barricade
- Boss Eraser
Kill 10 bosses in one or more On-line coop games
- Team Recruit
Reach Wave 20 in an On-Line Barricade game
- Resurrector
In an On-line Coop game, perform three revivals in a single game
- Sustained
In an On-line Coop game, revive another player and make sure they do not receive any damage for 15 seconds afterwards
- Back To Life
In an On-line Coop game, perform your first revival
- Held The Line
Reach Wave 8 in Bridge Barricade mode
- Team Trainer
Reach Wave 10 in an On-Line Barricade game
- Bad Move
Achievement description available at game update
- Thirty Minutes In Jail
Survive for 30 minutes on the Prison barricade map
- Gut Buster
Decapitate 100 Big Boy zombies in a single game
- Chain Reaction
Pick up Friendly Fire and use a Zombie Bomber's explosion to kill two more nearby bombers
- American Hero
Kill over 5000 zombies in one game
- Bullet Rain
Kill two Minigun zombie bosses within two minutes of each other
- Flak Jacket
Get hurt by and survive 10 Zombie Bomber explosions in one game
- Not Addicted
Pick up 10 health power-ups in one game when your health is at 100%
- Fifteen Minutes In Jail
Survive for 15 minutes on the Prison barricade map
- Killstreak One
Reach a stats KillStreak of 1000 zombies
- Pyro
Set 250 zombies on fire with the incendary rounds in a single game
- Double Duty
Achievement description available at game update
- All 4 Deadly
Get Fire Team, Mirror Image and Wild Bunch, then get a ghost pickup
- Flasher
Kill 100 zombies stunned by flashbangs in one game
- Itemizer
Pick up 250 powerups or items in one game
- Go-Getter
Updating
- Big Game
In one game, kill two bosses without killing any other zombie in between
- Unseen
While cloaked, kill 250 zombies in one game
- One Shot One Kill
Kill 250 zombies with the rage powerup in one game
- Time Traveler
Accumulate 90 seconds of Bullet Time in one single player game
- Magnet
Collect 10 zombie-attracting Rammers in one game
- Blockade
Survive for 15 attack waves in Barricade Mode
- Defused
Kill 3 grenade bosses in one barricade game within the first 20 waves
- Explosive Irony
Deal the killing blow to a Grenade Zombie with a grenade
- Fortress
Survive for 10 attack waves in Barricade Mode
- Bouncer
Survive 5 waves in Single Player Warehouse Barricade without the lower sentries firing a single shot
- LockDown
Reach wave 2 in warehouse barricade without any zombie breaching the fence perimeter
- Warming Up
Kill 10,000 zombies
- Execution
Kill at least 250 zombies using sentry guns
- Free Man
Finish off a boss zombie with the crowbar
- Winner
Complete all the story missions
- SpeedKiller
Kill any boss within 30 seconds of the boss appearing
- Hat-trick
Achievement description available at game update
- Guardian
Complete the Point Defense mission
- Untouchable
Complete any mission without taking any zombie damage
- Ladies First
Kill 5 female zombies in one streak without killing a single male
- Right-Hand Man
Get ghosts to kill 25 zombies in one streak while killing none yourself
- Victor
Kill all zombie boss types
- Gunbarrel
Kill the minigun zombie boss
- Arms Dealer
Get at least one kill with ten non-melee weapon in one game
- Collector
Collect at least 20 perks in a single game
- Cover
Kill 25 zombies while remaining inside one Turbine area
- Stopping Power
Kill 150 running zombies in a single game
- Horde
Kill 50 zombies within a ten second period
- Efficiency
Kill at least 10 zombies with one grenade