SiriusXpyro

Elements Completionist Gain all stars in 'Elements'.

Horsepower Completionist Gain all stars in 'Horsepower'.

You should be looking for Timmy Build a gazebo in a Single Player game

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Death of Comedy Use every type of novelty weapon on a zombie

World Peace... For Now Beat the game on all difficulties.

RPM Completionist Gain all stars in 'RPM'.

Go for Gold! In Onslaught, acquire seven gold chalices

Conflagration Finish Mission 6

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

Green Energy Produce all electricity without using raw materials.

A shining inspiration to us all! Achieve the rank of Grand Lord (Rank 25).

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Electric Whisper Learn how to craft Electric Arrows

Things That Go Ka-Boom Learn how to craft Exploding Arrows

World Changing Complete 50 Event Quests.

Like looking through a wall Manage to disable three guards, or more, inside a clone's smoke bomb

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

Knowns and Unknowns Repay a favour.

Plant Prosperity Sow 10 hectares

Four's a Party Play 3 games in the Free-for-All matchmaking queue.

All Star Get 100 Stars in S.T.A.R. Lab Mode

Around and Around We Go Perform every level interaction once

Renaissance Finish Mission 7

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Prod off Kill 5 worms with the Prod weapon.

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

Handyman In a Single Player game, repair a hunting shelter

Fervent Farmer Cultivate 10 hectares

Ample Yield Harvest 10 hectares

Unpopular Mayor Have 15% happiness

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

Rookie Squad Complete a map in Co-Op.

Delighted Plants Fertilize 10 hectares

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Power at Your Fingertips Unlock all city services

Gross! Drink water from cooler that has the lawyer head in it

Long Winded Parachute for 30 seconds and successfully land in a single turn.

Extracurricular Beat any bonus level

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Duct Tape FTW Create all combo weapons

Pacesetter Completionist Gain all stars in 'Pacesetter'.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

You Died Alot Get killed by Jason 100 times.

Big Spender Purchase a Concrete Donkey from the in-game shop.

Make it Count Win a ranked multiplayer match.

Alliance Reborn Break and enter.