Bad Timing
Die while reloading
Badass
Kill 20,000 enemies
Basic Training
Complete the single player campaign.
Berserker
Kill 500 zombies with the berserker buff
Big Hero
Kill at least 30 enemies after your teammates die in a single round.
Blood Bath
Be within blood splatter range for 3000 dismembering kills
Counter Attack
Kill 50 zombies using the Electro-shield upgrade in a single game.
Defender
Defend the objective 500 times
Demolitionist
Accumulate 500 explosion kills
Doctor
Heal 600 points of damage in a multiplayer game.
Dueling Chainsaws
Kill Sackhead using a chainsaw
Eat This!
Kill a tunneler using a well-placed mine
Efficient
Hit 3 enemies with a single railgun shot
Field Medic
Heal 300 points of damage in a multiplayer game.
Final Form
Purchase all of the available upgrades in a single game
First To Die
Be the first one to die in a multiplayer game.
Fort Kickass
Have the maximum number of defense items built simultaneously.
Gather 'Round
Lure 10 zombies onto a single mine
Good Neighbor
Spend 200 scrap metal repairing teammates' turrets in a multiplayer game.
Gunslinger
Kill 4 enemies in 3 seconds with the pistol
Hard Carry
Do more damage than all of your teammates combined in a 3+ player game that lasts at least 4 rounds.
If You Build It...
Build 500 structures
Line 'Em Up
Hit 5 enemies with a single railgun shot
Machinist
Have 5 turrets up simulatenously.
Mowdown
Kill 7 enemies using a single air support powerup
Nocturnal
Survive a night without using your flashlight while still killing at least 10 enemies.
Nope
Stop Sackhead with a bear trap
Old Fashioned
Last 6 rounds without building any turrets or fences
Oops
Kill a teammate with the afterblast of a demolition zombie that you shot.
Optometrist
Kill Deadmass using the med gun
Plumber
Kill all enemies in the Sewer on normal.
Professional
Go 4 rounds without taking any damage and kill at least 40 zombies within that time.
Rocket Surgeon
Heal 600 points of damage and kill 25 zombies with the rocket launcher in a multiplayer game.
Slayer
Kill 6,500 enemies
Survivalist
Complete the single player campaign on normal without dying.
Tank
Take at least 500 points of damage in a single life.
The Little Zombie That Could
Get killed by the last basic zombie of the round.
Thick Skinned
Take at least 250 points of damage in a single life.
To Catch a Zombie
Catch 500 enemies using the bear trap
Trickshot
Hit 10 enemies with a single railgun shot
Untouchable
Complete the single player campaign on normal without taking damage.
Vampire
Heal 300 points of damage using lifesteal in a single game
Veteran
Kill 3,000 enemies
You're Fired
Kill 6 enemies with the flamethrower within 8 seconds.