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Olympic Gold Complete Athens chapter on 007 Difficulty

Conservationist Complete a story mission in the single player campaign without reloading a gun.

Extermination Master Win 25 public matches of Extermination

Wages of Conflict Aquire all conflict diamonds in the game available through payment or exploration

Proven Defender Complete "Defender Training - Stage 2"

Assault With Battery In Zetsubou No Shima, electrocute a zombie with a shield.

Indirect Fire Kill 100 zombies with traps in Infection.

It's a Secret to Everybody Find all secret areas in the caves.

There's someone in my house eating my birthday cake Keep your house undamaged for 5 minutes in Commando mode

Vaporeyezed In Gorod Krovi, use the Gigant Beam to kill 20 Zombies in one activation.

Cryogenic Slumber Party In Moon, complete Richtofen's Grand Scheme.

Unstoppable Completed Shore Leave on Hardcore difficulty

Extermination Addict Play 100 public matches of Extermination

Power Up Use a special weapon while Power Gear is active.

Ain't Got Time to Bleed Heal or regenerate 30 blocks of health in Survivor

Don't You Die On Me Revive a teammate in Co-Op Campaign or Endgame

My Kung Fu Is Strong Gain Mastery of 1 Fighter

CvS Master Win 25 public matches of Creatures Vs. Soldiers

Bruiser Get a total of 200 takedowns

It's a Legitimate Strategy Get 3 Kills while defending an Objective Zone without leaving it

Fast and thorough Kill all the enemy snipers in 'Appearances can be deceiving' in less than four minutes.

Epic Troll Stash Complete "Epic Troll Stash"

MK Arcade Champion Complete Arcade Mode with all MK characters

Tormented Massacre Defeat 1000 Elites on Torment IV.
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Game Over, Man! Call in a rescue in Outbreak.

Smooth Operator Defeat Oz in Descent.

Herbal Remedy In Zetsubou No Shima, use a plant to return to life.

Love Tap Kill a Goliath with a melee attack in Infection.

Frontline Offensive Win 25 Multiplayer Matches

Old school Complete a level using only pistols

Silent Running Perform 40 stealth takedowns

Bane of the Khazra Complete the Rise of the Khazra Dark Citadel.
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The Final Descent In The Frozen Dawn, enter the lost city of Thule.

Climbing the Corporate Ladder Survive until round 25 in Infection.

Friday, Saturday and Sunday Night Fever You're the life and soul of the party.

Best Friends Stroke your pet at least 30s a day for 5 days in a row

Why We Fight - Guerrilla Complete chapter 1 on the Hardest Difficulty in the Single Player Campaign

We Didn't Need a Bigger Boat Complete Escalation and Disruption in Co-Op Campaign

Now We're Getting Somewhere Complete 4 of the 8 stages.

Nah, I'm Good. Reach round 7 without anyone opening a door in Descent.

Destroyer Get 1000 Eliminations in Multiplayer

Killer Instinct Win your first Ranked Match in standard Deathmatch mode

Wonderful In Revelations, kill 10 enemies in one shot with each wonder weapon.

All My Own Work Win a Match with Manual Controls (auto-switching must be set to 'Manual')

Heart of Darkness Complete Inside and Distortion in Co-Op Campaign

Slaughterhouse Kill 50,000 total Enemies in MWZ

One Against All Kill Orcus while in a 6 person squad in MWZ

Ladder Master Complete Arcade Ladder on max difficulty without using a continue

Unstoppable Force Win 100 Matches

Fully Pulled Levelled up your first Neighborhood.