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Two's Company, Four's a Party Complete any Adventure level with 4 players.

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

Gasmoxian Slug Beat all of Nitros Oxide's times in Time Trial Mode.

Survivor Survive until Round 25 in Outbreak.

Alright, Alright Survive until round 10 in Infection.

You Can Pet The Dog Pet a Hellhound in MWZ

Woah! Earn all the other trophies.

Closing the Experiment Log Earn ALL of the platinum Flashback Relics

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

High Wire Act Kill 10 enemies while using a zipline

Perkaholic Have 9 perks active at the same time in MWZ

Keeper's Best Friend Prevent a goal with a sliding goal line clearance

That's One Way to Do It... Destroy an airborne enemy helicopter with a Mortar Strike

Sack the Postman Post all 6 invitations for the party.

King of Bling Earn ALL of the Clear Gems

No Mo' Modi Get out of jail, but not for free

Annihilation Get 100 Elite Zombie Eliminations in Zombies

141 Ready Complete the campaign on Veteran

Overachiever Watch the 100% bonus ending

gnilB fo gniK Earn ALL N. Verted Gems

Going Up… In The Darkest Shore, unlock the Ubersprengen.

Eaten by a Grue Play Zork on the terminal.

Give me liberty, or give me death Escape Vorkuta.

Dipped in Gold Purchase all Safehouse and Player Upgrades in Campaign

Cyberized Research all Augments for 10 Items in Zombies

Collector Extraordinaire Collect 100% of the Prize Bubbles in The Journey Home.

Back From The Dead Reclaim your gear from a Tombstone in MWZ

VIP Receive orders from Lancer.

Ready For Deployment Reach rank 10 in Combat Training.

No Such Thing as Too Many Find and use all Armaments in Open Combat Missions

Data Miner Collect all data packs

Case in Point Complete the Campaign on Veteran difficulty

Bulletproof Find all Plate Carrier Upgrades in Open Combat Missions

Gearhead Collect all Weapons and Field Upgrades from Supply Boxes in Open Combat Missions

Insert Coin Access the terminal and battle the forces of the Cosmic Silverback in Dead Ops Arcade.

Ensign Reach round 10 in Carrier.

Perfectionist Earn ALL N.Sanely Perfect Relics

World Domination In Liberty Falls, tap into your Supervillain side

Conqueror Defeat a Warlord in MWZ

Seeing Red Complete 5 Contracts in the High Threat Zone in a single deployment in MWZ

New Dynasty Enter Prestige in Black Ops 7

Deadwood In Liberty Falls, achieve a sporting high score

A safer place Sabotage the Soviet space program.

Master Of Arms Enter Weapon Prestige with any Weapon

OVER-Overachiever Watch the 106% bonus ending

The End? Complete Act III in MWZ

Faster Than Sound Earn ALL of the platinum Time Trial Relics

Archenemy Kill your Nemesis 10 times

Master Marsupial Get EVERY trophy