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One Gun at a Time Staff the Engineering Department with 80 engineers.

All Of The Above Finish All Single Player Grinds

Perfected Get 100 Eliminations while having an active Combat Hybrid Perk in Multiplayer

Enduring Resolve Listen to the Legend's last recording.

None Left Standing In Der Eisendrache, kill every type of zombie using a minigun.

One Too Many In Zetsubou No Shima, throw up.

Stoked Make all spirits reach an ecstatic mood at least once

Timing is Everything Kill the final 3 Ancestors within 10 seconds of killing the first Ancestor in Regular or Hardcore difficulty.

Calling For Backup Call in 50 Scorestreaks in Multiplayer

Tracker of Dark Secrets Decrypt all clues hidden inside the cipher machines and claim the rewards.

Always Hard Kill the final Ancestor with a relic active in Hardcore difficulty.

Quick Pick Solve any Security Lock System in less than 7 seconds

Beauty Complete any campaign without being hurt.

Seeds of Doubt In Zetsubou No Shima, the one must be saved.

Popcorn Cook 50 zombies with the Magnetron in Infection.

Long Way Down You performed a drop assassination of at least 150 meters in the Kill Cascade challenge

See Salt Visit every major Peroxian landmark (and report back to the tour guide!)

Information Overload Find all 8 Protocol Data Drives

There's someone in my house eating my birthday cake Keep your house undamaged for 5 minutes in Commando mode

The Volunteer Make contact with the Ethereal hive mind.

Collector Complete all of Susan's collections.

Indirect Fire Kill 100 zombies with traps in Infection.

Oppenheimer Staff the Research Labs with 80 scientists.

Assault With Battery In Zetsubou No Shima, electrocute a zombie with a shield.

Need A Bigger Wallet Obtained 5,000,000 MRP in total.

Don't You Die On Me Revive a teammate in Co-Op Campaign or Endgame

Vaporeyezed In Gorod Krovi, use the Gigant Beam to kill 20 Zombies in one activation.

Cryogenic Slumber Party In Moon, complete Richtofen's Grand Scheme.

It's a Legitimate Strategy Get 3 Kills while defending an Objective Zone without leaving it

Cardbored Collect all 9 trading cards on Peroxis and Muxxalon.
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Escaping a Daydream Defeated all masked warriors.

Meticulous Collector Acquire all items available in hard time attack

Porch Pirate Find every scattered Muxxalon package.
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Best Of Both Worlds Played a match using Team Death Match and Battle Royal rules.

Avid Collector Collected half of all collectible items.

True Combat Gear Collector Collect all weapons and Legion Arms in the Forgotten Time.

Setter of Trends Unlock all outfits.

Watch your step! Fall to your death

Wander and the Colossus Acquired all Trophies

Have a Nice Trip Cause an enemy to fall to its death

To Be Human Learn all gestures from the Forgotten Time.

Herbal Remedy In Zetsubou No Shima, use a plant to return to life.

Humanity's Savior Beat the game on any difficulty.

The Final Descent In The Frozen Dawn, enter the lost city of Thule.

Game Over, Man! Call in a rescue in Outbreak.

Taunting Challenge Clear Challenge Level 4 in Kaycee's Mod.

Love Tap Kill a Goliath with a melee attack in Infection.

Frontline Offensive Win 25 Multiplayer Matches

We Didn't Need a Bigger Boat Complete Escalation and Disruption in Co-Op Campaign

Wonderful In Revelations, kill 10 enemies in one shot with each wonder weapon.