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Even Tempered With the Temperamental Skull activated beat Halo without upsetting anyone.

Researcher Get Deadly Damage from Traps

Innovator Collect all Blueprints in Story Mode

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

Quite A Specimen Destroy all 50 Royal Jelly Containers

Deep Cover Capture Menendez.

Night Terrors Finish the Campaign on Ultra Nightmare difficulty

Spec Ops Complete Touch The Sky in stealth without killing a single guard on Overkill.

Book Worm In Shaolin Shuffle, find and collect all bios for AJ, Andre, Poindexter and Sally.

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

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

Look at These Pelicans Fall Scarface Mansion - Find and shoot the two pink flamingos.

Swamp Fox Get 4 or more kills whilst in mud.

Reunited with Fidolina Defeat the Papaback and save your dear friend in Dead Ops Arcade

Sinking Star Interrogate Menendez.

Texas Through and Through Reach level 5 with all characters.

Serial Killer Execute 100 victims in total.

Entrapment Entrepreneur In Alpha Omega, kill 11 zombies with 5 different traps

Encryption Decryption In The Beast From Beyond, Pack-a-Punch the Venom-X twice.

Warrior's Madness Kill 4 or more enemies with a single melee attack.

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

Living Legend Complete the Campaign on Legendary Difficulty.
0/100

Defender Successfully defend FOB Spectre from incursion.

No Waste Kill 4 enemies without reloading the Shotgun

Message Sent In The Beast From Beyond, send the Turnstile back to the past.

Swan Song Destroy the last surviving rubber duck.

It Looked Easy Enough Complete the Challenge Mode

Dear Diary In Attack of the Radioactive Thing, listen to all of Willard’s personal recordings.

Sub Expert Beat the Submerged challenge on "I am Death Incarnate" difficulty

Hey Mr. DJ Nightclub - Have 12 hostages or more on the dance floor when you escape.

Sins of the Father Complete Vanaheim.

Hot Streak With the Floor Is Lava Skull activated beat a mission without jumping or dying.

All Shield, No Yield Complete any level on Heroic difficulty or higher without taking health damage.

Dance On My Grave In Green Run, acquire your Tombstone.

Heavyweight Kill a Strong Walker with only melee attacks

Secret In Tag der Toten, find the secret

Do you like to play with FIRE?! Set 5 Bandits On Fire.

Battle Buddies Complete the campaign in Co-op

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

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.

Destiny: Rick or Shane Chose your Leader moving forward

Mindfullness Become Panicked and survive

The Possibilities Are Endless Unlock all alternate moves.

Vehicular Manslaughter Create 8 unique Combo Vehicles

Egg Slayer In The Beast From Beyond, equip the Venom-X.

All Mired Up Complete Operation 3

Survival of the Fittest Finish Act 2

Snowstorm Stealing Xmas - Finish the heist on DW or above.

Map Quest Complete The Silent Cartographer without shooting, using grenades, melee, dying, or restarting.

Seasoned Journalist Solve all of the Mysteries