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The Science of War Complete Soviet mission 5 on any difficulty level

Documentarian Collect 6 journals.

The Emperor's Wrath Complete 10 Investigations on the highest difficulty.
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Failed Maintenance In The Beast From Beyond, kill zombies with every trap.

Honorary Commendation Complete half of all Optional Objectives

A Rebuttal of Fists Complete all missions in Lost Episode 1.

Iron Man - Fire Sale Complete chapter 3 in the Single Player Campaign without dying or restarting a checkpoint

Put Your Foot Down Unlock issue 9, "The Final Standoff"

Bulldozer Use a stunned vehicle to push another vehicle into a pit (excluding challenge events)

Leno would be proud Have at least one car from each manufacturer in your Garage

Minimum Negavanitia Obtain the Negavanitia soul

Full Arsenal Collect all weapons and weapon parts

This is Caketown! Block 100 projectiles with your shield in online games

Signal to Noise Enter the Broadcast Center without detection.

Broken Record In The Beast From Beyond, unlock the hidden song.

Vulcan Repeater Tinkerer Bought all upgrades for the Vulcan Repeater

Every Bullet Counts Defeat Tatsuo without restocking your ammunition from the UAVs, on normal or hard difficulty

Iron Man - The Wall Complete chapter 4 in the Single Player Campaign without dying or restarting a checkpoint

Reckless Abandon Earn 100,000 mayhem points

Traitor Defeat the Fallen as Megatron

Runway Relief Capture the airfield

Salvation Lies Above In Tag der Toten, Ascend from Darkness

Judge and Jury Execute 50 enemies (only with Assassin or Crusader).
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Marauder Master Kill 50 enemies with the Marauder

Night Terrors Finish the Campaign on Ultra Nightmare difficulty

Military Intelligence You were part of a conversation wherein four players were all in disagreement over what to say.

Sins of the Father Complete Vanaheim.

Giant Killer Win the Giant Cup in the Arena

Potato Party Unlock all MR. & MRS. POTATO HEAD™ costumes.

Oh so shiny! Unlock all Theme Park Plaza Statues.

Bestiary Complete! Booked all monsters in the Bestiary.

Compliments to the Chef Help the professor with his plan.

Cooking With Gas Destroy a Seeker with the gas trap in the HUB.

Careful, Thorn! You have judged Caius Thorn for his disobedience.

Vulcan Repeater Master Kill 100 enemies with the Vulcan Repeater

Pet Cemetery Killed 20 ambient animals

No Bargains Buy nothing for 10 straight waves of Survival

This Is a Non-Smoking Section Get 3 enemy zombies hit simultaneously by Lyssa's ground smoke attack.

Coast to Coast Medal in all Decepticon East Coast Missions

Powerglide Performer Fly through the coolant tunnels in 23 seconds in Aerial Assault.

SMG Havoc Achieve the maximum SMG Critical Hit Multiplier 7 times in your career.

Basic Weapon Handling level 1 Kill 10 people.

Swamp Fox Get 4 or more kills whilst in mud.

Weapon Experimenter Connect every weapon's alternate fire with enemies

Shank, SMASH! Kill 50 enemies with the heavy object smash

So much anger... Discover the secret of Sophie Kane

Knock, Knock! Open the gates of Troy for the Greek army.

Get 'Em Up Pick up the same enemy five times

Clean Sweep Kill all enemies in Episode 1.

GT-R Official Record Achieve a time of 7'29.03 on the Nürburgring Nordschleife in a Nissan GT-R '07.
The record must be achieved in a Time Trial in the Arcade mode version of the car with tires of Sports Hard grade or lower equipped.