QuantumMercury

Long Way from Texas Complete D-Day.

Foe To Friend Use an enemy combat robot to kill 10 enemies.

Decimator In Campaign, kill 10 enemies in under 3 seconds.

The Paddle Complete Operation Cobra.

No Sanctuary Complete Stronghold.

Disavowed Complete Black Ops on Hardened, Veteran, or Realistic.

Last Stop Complete S.O.E.

Champagne and Caviar Complete Liberation.

Lock, Stock, And Then Some In Campaign, unlock all attachments for any weapon.

Slow and Steady Spend 3 minutes using Focus in the campaign.

Human Cost Complete Collateral Damage.

A Second Chance Complete New World on Hardened, Veteran, or Realistic.

Death Factory Complete Death Factory.

Ludwig, the Holy Blade Defeat the beast that was once Ludwig, the Holy Blade.

Our Men Complete Hill 493.

Living Failures Defeat the failed attempts to become Great Ones.

Worst Christmas Ever Complete Battle of the Bulge.

Lady Maria of the Astral Clocktower Defeat Lady Maria of the Astral Clocktower.

No Sacrifice Too Great Complete Ambush.

To the End Complete the campaign.

Orphan of Kos Defeat Great One: Orphan of Kos.

Laurence, the First Vicar Defeat the beast that was once Laurence, the First Vicar.

High Tide Complete In Darkness on Hardened, Veteran, or Realistic.

Gyoubu Masataka Oniwa Defeated "Gyoubu Masataka Oniwa"

Old Hunter's Essence Acquire all old hunter weapons.

Crackshot In Campaign, kill 5 enemies from over 100m away.

Potato Masher Save 5 allies by throwing away a live enemy grenade.

Belly of the Beast Complete Provocation on Hardened, Veteran, or Realistic.

Another Side of the Story Complete the Campaign on any difficulty.

The Phantom Lady Butterfly Defeated "Lady Butterfly"

Praise and Pass Request Turner to toss you ammo 20 times.

Into the Abyss Complete Hypocenter on Hardened, Veteran, or Realistic.

Nowhere Left to Run Complete Nowhere Left to Run in Campaign on any difficulty.

Friend in Need Request Zussman to toss you First Aid Kits 30 times.

Genichiro Ashina Defeated "Genichiro Ashina"

Blood for Blood Complete Vengeance on Hardened, Veteran, or Realistic.

Doing Camo Right In Campaign, unlock all camos for any weapon.

Unlocked Potential Fully upgrade a Cybernetics Core.

Silent Night Sneak through the courtyard undetected in Liberation.

Folding Screen Monkeys Caught the Folding Screen Monkeys

Guardian Ape Defeated the "Guardian Ape"

Friends and Foes Complete Rise and Fall on Hardened, Veteran, or Realistic.

Fracture Jaw Complete Fracture Jaw in Campaign on any difficulty.

Silverback In Black Hack the Data Vault and brace yourself for Cyber's Avengening in Dead Ops Arcade 2.

Master of the Arts Grasped the inner mysteries of any combat style

Understanding Madness Complete Demon Within on Hardened, Veteran, or Realistic.

School of Hard Knocks Request Stiles to toss you grenades 15 times.

Great Serpent Defeated the "Great Serpent".

Sting like a Talon In Campaign, kill 20 enemies while flying the same Talon.

Guardian Ape Immortality Severed Used the Mortal Blade to sever the Guardian Ape's undying