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A Living Fossil Capture a fish known as "the living fossil."

A Dinner for Two Endurance Co-op Challenge: Eat the meat of 3 wolves with your partner

Memory() Unlock 32 MEM.

Out in the Cold Track down the cryopod.

The Space Merchants Attain ‘Trader’ status in Most Units Accrued

Happy Camper Endurance Challenge: Survive for 5 days

Facsimile You met January for the first time.

The Resurrection and the Life Survive the Militia onslaught.

Ratcatcher Find all the dead rats in Bedroom in a single play.

Bad Date You dropped a damsel into the pool in the Eternal Paradise stage.

Resist the Wrist Defeat Colossus 3 Without Breaking His Wristguard

Promise Kept Complete End of Zoe on Easy or Normal.

Reveal() Inspect all completed Function Files.

Who Needs a Map? Endurance Challenge: Locate 5 crypts

Premier Prestidigitator Used Technicks 100 times.

Decorated Complete 50 challenges.

Pure Journey to the city unscathed.

Kebabed Kill 3 enemies with a penetrating Plasma Blast.

Sandbox() Clear one of each Test.

Jackhammer Rush As an Engineer, Vanquish 10 Players while riding the Jackhammer

Backstabber Kill 20 enemies with melée while they are idle

Half-Truths Complete a mission without causing a single Military Alert.

Architect Share a Blueprint with your Co-Op partner.

Headhunter Kill 300 Human enemies.

Offensive Line As an All-Star, Vanquish 5 Players using the Sprint Tackle in a session

Scrap collector Earn any collectible Star

Come Here, Little Boy Taunt and defeat five plus angered enemies while taking no damage. Gaze of Despair may be equipped.

Process() Inspect all completed Limiter Files.

Split Pea Zombie Soup As a Peashooter, vanquish 10 Players with the Pea Gatling in a session

Sunday Driver Complete the driving portion of S.O.E. without hitting any obstacles.

Sprinter Reach the exfil chopper with 1:30 remaining on the clock in Regular or Hardcore difficulty.

Photo-Finish Beginner Gain a star in any event of 'Photo-Finish'

Power is Everything Obtain five highly rare weapons.

User() Unlock every Upgrade Slot and Passive Slot.

Solo Warrior You cleared an Offline Mode arcade battle solo.

The Whole Story Collected all Audio Diaries and Voxophones in Burial at Sea - Episode 2.

It Takes Two to Tango Chain a 40-defeated combo in Team Slayers.

The Cleaner Destroy 10 Military Bases or Infected Hives in New York City.

There's Always Peng! Find Peng.

Blade Runner - 75 kills with the knife Kill 75 Helghast using the knife

Naughty Tentacles Destroy all the tentacles that drop down together during a single sequence in Chapter 9.

It's Starting to Grow on Me Use Rose's mutamycete powers at least 20 times.

Full Strength Duke and Damir stay with the crew, Alyosha doesn't get wounded.

Run the Gauntlet Complete "Desperate Escape" on Professional.

Rattle the Hive Bait 10 Ghûl mounds.

Helping Hand Revived by an ally for the first time.

Still Tastes Good Endurance Challenge: Eat the meat of 5 wolves that were killed with poison damage

Known Associate Learn the whereabouts of Veronika Ryan.

Helping Hands Revive a Co-op player 20 times

Carmaheddon Kill 50 enemies with the Bukhanka.