MajSkillz

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Music Lover Collect all harmonica melodies in the SAM'S STORY chapter.

Specter Officer Reach max level with one class in the Cooperative campaign.

On the Clock Completed the training in Through the Eyes of Evil in under 18 seconds

Death is a journey Successfully bring Antea back to life

Go for Gold! In Onslaught, acquire seven gold chalices

Packrat Collect 50% of Data Drive files in the Bloodline expansion

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Together Till the End Be the last man standing

Baranor the Conqueror Complete the Desolation of Mordor with a Gold Rating.

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

GD Parkour Instructor Complete all Parkour Fever Challenges at night

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Factory Zero You survived Hei Zhen Zhu and RBS using no Praxis kits, weapons, grenades or mines. Whoa.

Critical Literature Collect all physical Codex pages in a single save slot (Ancient Gods 2)

Locksmith Unlock all locked chests in New Eden

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Pack-A-Punch-ectomy In Revelations, recover the Pack-a-Punch machine from its abductor.

God Among Men Kill 250 total enemies during Slo-Mo

Guilty as Charged Complete a Murder Circus Finale with Chief Justice.

Atomic Obliteration - Complete all the Challenges

Gimme Five Attain Level 5 with all Murder Circus contestants.

Moneybags Have 15000 credits in the bank in Outbreak.

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

Cursed Locksmith Unlock all cursed chests in New Eden

Most Dangerous Game Complete a Murder Circus Finale with Artemis.

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Viva La Reina Complete a Murder Circus Finale with Consuela.

Think She'll Notice? Destroy all of the cars in the mansion garage in 'Oligarch'

Living the Dream Complete a Murder Circus Finale with Daniel Li.

Have You Tried Turning it Off and On? Use a Shock Stick to disable an enemy Sentry Gun

I'm dead serious Threw a chaff grenade at ZEKE (single player only).

Shadow Vigilante Master the Shadow Vigilante Dark Knight track

A Man of Principle Complete the SAM'S STORY chapter earning the Captain's full trust.

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Things That Go Ka-Boom Learn how to craft Exploding Arrows

It's just a scratch Complete THE TWO COLONELS Chapter without using any Medkits on Normal or higher difficulty.

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament

Great Owl Find all the Night Hunters' secret stashes in the SAM'S STORY chapter.

Electric Whisper Learn how to craft Electric Arrows

Hitchhiker Defuse the bomb on the truck in 'Gora Dam' while it is in motion

Salute Me Achieve the rank of Lieutenant.

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Snow Angel Execute the forest sniper in 'Frozen Tundra' with a takedown

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Let's Play Complete the first Horde Mode Mission

The 40-Yard Digital Dash Breach: Succeed 3 Data Sphere deliveries.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

Throttled Survival Kill the Breeder while using a Relic in Nightfall in Regular or Hardcore difficulty.