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Synchronized and deadly Kill an enemy shortly after another player in Coop has killed one.

To the Rescue Cold Darkness Challenge: Rescue 6 prisoners

Get Your Right Foot Wet Complete a match in Competitive Co-Op mode. (Online co-op only)

Chapters 14-Epilogue (Normal) Complete Chapters 14 through the Epilogue on Normal difficulty.

Rescue In the "Ground Zeroes" mission, rescue the prisoner to be executed and extract him via chopper

Trusted Contractor Complete New Game Plus on any difficulty mode.

DLC: Mars: Mars Second Amendment Buy 12 weapons.

Case Closed Complete all single-player episodes on Officer difficulty

Involuntary Euthanasia Killed the 2 soldiers before the building fell on them in Uprising

Resurrection Day Successfully complete Cathedral of Resurrection

Ghost You completed all missions after the prologue, alerting or killing no one but key targets

There's no "I" in Team Score at least 80,000 points in Team Survivors.

Hollywood Hideaway Find Roark's hidden room in Ep. 7: Glass Houses

BYOB Use the BBQ to take out the chef in Ep. 7: Glass Houses

For Posterity Photo mode: take a photo of a group of 4 agents.

Nope Endurance Challenge: Escape the forest on day 1, without recovering any artifacts

An Ocean in Storm Cold Darkness Challenge: Kill 75 enemies in a single Cold Darkness run

Mopping Up - Kill 40 Helghast foot soldiers Killed 40 or more Helghast foot soldiers on the beach

Bad Guy Jamboree Singleplayer: Complete Gunfighters

Fancy Survive 10 consecutive waves using only custom weapons.

That Was A Breeze Complete the Path of Huracan Challenge Tomb

True Detective Complete 3 case files in single-player

Complete Your Training Complete all unique Battle Scenarios.

Nowhere to Hide Tag and kill 30 enemies with the Bullseye secondary fire in the single player Campaign.

Revolution Beat the game

The Ausmerzer Capture the Ausmerzer

My family's always been in meat Get at least 15 for 1 with an explosive kill

What the hell *are* you? Took a Russian Dog Tag in the forest ambush in Rock And A Hard Place

Keep Playing Wait for the game to resume after the credits

Friends From Afar Singleplayer: Complete Friends From Afar

Have a Good One Singleplayer: Finish all of Deuce's missions

Maxed Out Fully upgrade all weapons and equipment.

Reunion See the alternative ending on any difficulty mode.

Fully Loaded Simultaneously have four completely upgraded weapons

Give me something to shoot Kill a Zombie Sniper in mid-air

“The ‘I’ in Team” – Expert Rescued the Little Sister in “The ‘I’ in Team” in under 3:00

They look like ants Destroy all enemy ground targets and kill no allies with the rods.

Monkey Do Complete the Howl of the Monkey Gods Challenge Tomb

Cliffhanger... Singleplayer: Complete Compromised

Quarter Given Get 4 unique groups of enemies to surrender.

The Sledgehammer Singleplayer: In Breaking Bagram, destroy 2 vehicles with a single 2000 lb Laser Guided Bomb

Bouncing Island Collect all the lums flying above the bouncing island in "The Mysterious Inflatable Island"

Go With The Flow Complete The Age Makers Side Mission

80s Hero DLC Vietnam: Complete the game in Action Movie Mode (Host only).

Safeguard Complete round 20 in safeguard.

They're so cute! Win 30 creatures

It's Like That One Video Show thine worst enemy, the abomination known as "The Darkness", who is the nerdiest of them all.

Get Your Left Foot Wet Complete a match in Campaign Co-Op mode. (Online co-op only)

Smash the System Completed all 5 rounds of The Holodome.

Dropping Deuce Singleplayer: Jump 7.5 meters high on the ATV