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Protocol Dictates Action Complete The Library.

This Stuff is Your History Complete 343 Guilty Spark.

Disarmed Dismember 100 Flood parts.
100/100

Control Alt Delete Complete Assault on the Control Room.

That’s My Ride On Assault on the Control Room get to the Banshee before the Elite.

I Heard You Like Upgrades Fully upgrade Ol' Tessie

Claims Adjuster Break off 50 Vehicle parts.
100/100

Bee Thirty Complete Silent Cartographer.

Infiltration Anticipation Complete Truth and Reconciliation.

Plate Tectonics Break off 25 Hunter backplates.
100/100

Bad Gas Destroy 100 Grunt backpacks.
100/100

The eagle has landers In Ascension, escape on all 3 lunar landers.

Installation 04 Complete Halo.

Make Them Count Kill 100 enemies with headshots.
100/100

I Don't Think They Exist In TranZit, kill one of the denizens of the forest while it is latched onto you.

Ectoplasmic Residue In Buried, acquire a perk for free.

The Autumn Leaves Complete Pillar of Autumn.

Cranial Collect a Skull.

Undead Man's Party Bus In TranZit, complete all additions to the bus in 1 game.

Sally Likes Blood Demonstrate killer economic sensibilities by taking down 3 enemies with a single bullet.

Eaten by a Grue Play Zork on the terminal.

Making the Rounds In Mob of the Dead, complete the cycle 3 times.

Feed the Beast In Mob of the Dead, obtain Hell's Retriever.

No One Escapes Alive In Mob of the Dead, execute the escape plan.

Paranormal Progress In Mob of the Dead, open a door without spending points.

Revisionist Historian In Buried, rewrite history.

Candygram In Buried, make a candy delivery.

Welcome to the Club Reach Sergeant (Level 10) in multiplayer Public Match.

Death From Above Deal 50 damage to any enemy while atop a Rocketeer.
50/50

They are going THROUGH! In Ascension, kill at least 5 zombies with 1 Gersh Device.

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

Just ask me nicely Break free from the torture chair.

Lively Havana Get a tour of Havana (complete Sequence 2, Memory 1)

Second Chance Use Second Chance for the first time.

Enforcer Damage 7 hostiles within 5 seconds with Handcannons.

Relentless Land 50 consecutive shots on hostiles with Rifles.

Approach Vector Dispatch a shielded hostile with a mid-air Melee attack.

Come Back Stronger Die for the first time.

No time to die Escape by helicopter

Positively shocking Make an enemy taser another enemy

All time high Infiltrate Nicholas Webb's penthouse

Agent under fire Escape in the bin lorry

Disarming personality Disarm an enemy with a laser

Destroyer Get 1000 Eliminations in Multiplayer

Not In My House Destroy 5 items with the Hunter Bot in a single match

You only live twice Defeat the assassin

A hard man to kill Survive an assassination attempt

Trigger Mortis Escape the ambush alive

Short fuse Shoot at an enemy while he's throwing a grenade

Nobody lives forever Find 009s body