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Old Friends Have 10 special conversations between characters with a history while in an HQ map.

Down To Earth Complete "Down To Earth" challenge

Psycho Cellblock killer Finish 'Psycho Cellblock' on Insane

Mercenary Reach Rank 20 (Ranked Match)

Greed Achieve a x10 "Greed Kill" series

Crop Duster In Zetsubou No Shima, kill 10 zombies with a single shot of the KT-4.

The Geek Complete the game on Recruits difficulty.

Feel the Burn! Perform every Meter Burn special move of every character

Soldier of Misfortune Unlock field manuals for all weapons (Ranked match)

Perfected Get 100 Eliminations while having an active Combat Hybrid Perk in Multiplayer

Wardrobe Change In Revelations, wear three different hats.

Tools of the Trade Craft the Virus Filter and Flare Gun in Survival mode.

Cutting The Cord Completed Mission 17 in campaign mode.

Background Reading Look in every folder in Flight Computer

None Left Standing In Der Eisendrache, kill every type of zombie using a minigun.

One Too Many In Zetsubou No Shima, throw up.

Does whatever a spider can! Unlock all 42 trophies to earn this.

Spectacular!!! Complete 12 levels with the highest rank in Hard mode

Calling For Backup Call in 50 Scorestreaks in Multiplayer

Best of Friends Defeat 5 psychopaths in Co-op.

Straight-A Student Complete every level in Skatepark

Let's Settle This Completed Mission 18 in campaign mode.

Giant Slayer Completed Mission 19 in campaign mode.

Wedge Warrior Collect 30 wedges.

Reaching New Heights Completed Mission 20 in campaign mode.

What A Wonderful World Completed campaign mode.

Tens, Anyone? Correctly answer 10 questions of each Trivial Pursuit category type.

Seeds of Doubt In Zetsubou No Shima, the one must be saved.

Popcorn Cook 50 zombies with the Magnetron in Infection.

Listening In Collect 30 Audio Logs.

Cramped Quarters Get 8 survivors into a vehicle.

Big Dipper Earn 21 stars in Challenge mode

Caribbean Pirate On day 2 of the Rats job, bring additional meth bags to the trade, but steal your payment instead.

MK Arcade Champion Complete Arcade Mode with all MK characters

Mission Accomplished: "Central Computer" Progression

Indirect Fire Kill 100 zombies with traps in Infection.

My Kung Fu Is Strong Gain Mastery of 1 Fighter

Mission Accomplished: "RDV Retreat" Progression

Veteran Play thirty games

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

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

Cartoon Apocalypse Survive 30 waves in Multiverse Madness

Need A Bigger Wallet Obtained 5,000,000 MRP in total.

Doctor Fantastic On day 2 of the Big Oil job, complete the heist with the first engine being correct.

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

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

Bodyguard Complete a level without the monsters draining Amy's energy

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

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

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