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It Came from Below! Kill 6 enemies with the knife while underwater in "Legends Never Die".

Hard Hitter Complete the campaign on Hardened difficulty.

Son of Medici Complete Story Mission: Son of Medici.

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

Sound of thunder Unlock all Codex Entries in Through Mud and Blood

Builder Complete One Relay Station Upgrade Quest (Valley Of The Yetis, Single Player Only).

Payback Complete "Mind the Gap", "Goalpost", and "Return to Sender" on Veteran difficulty.

Brainteaser Rescue the fifth hostage from Riddler

Flying Ace Shoot down 10 enemies with machine guns in "Throttle."

YOLO Among Thieves Beat the Last Chapter Without Dying on Normal Difficulty or Harder

Airspace Control Kill 10 enemies while they use zip lines or are rappelling. (campaign only)

The Collector Completed a crazy request for Tannis

EMT Craft a Large Med Pack.

Magma Racer Earned a silver medal or better in the Rift Plane Health Race.

Backtracking Ride the crates

Guided by Sparks The crate is key

Spiritual Hunter Kill A Yeti (Valley Of The Yetis, Single Player Only).

City of Lights Complete "Bag and Drag" and "Iron Lady" on Veteran difficulty.

Block This! Perform a 10-hit combo with any fighter

The Darkest Hour Complete "Eye of the Storm", "Blood Brothers", and "Stronghold" on Veteran difficulty.

Master of the Awakened Kill 5 Yetis (Valley Of The Yetis, Single Player Only).

Taking down giants Unlock all Codex Entries in Friends in High Places

SP Prestige Complete the campaign on Veteran difficulty.

Dragon Slayer Kill 25 Dragons

Master Builder Complete All Relay Station Upgrade Quests (Valley Of The Yetis, Single Player Only).

Enlightened Find the truth.

This is the End Complete "Scorched Earth", "Down the Rabbit Hole", and "Dust to Dust" on Veteran difficulty.

Improviser Use the environment against an enemy.

Awakened! Complete The Valley Of The Yetis Campaign (Valley Of The Yetis).

Razor Rain You killed 5 characters with Drop Assassination

Master of adaptation Complete all challenges in the campaign

Fully Outfitted Upgrade your RIG and Stasis completely

Iced - Destroy all Ice-Saws and Dropships Destroyed all 4 Helghast Ice-Saws and all 6 Dropships

Sucker born every minute Paid for a worthless tour of the world's largest bullet

Switcheroo Use a Jack Spot in a Pursuit (Single Player)

Fatality! Perform a Fatality!

Light Seeds Provider Collect 300 Light Seeds.

Big Earner Received $10,000 in earn from one Underboss

Serrated Edge Finish a Juggernaut with a knife.

Epic Tier 3 Engineer Complete the game on the hardest difficulty setting

Hydrogen Bonded Achieve 100% synchronization in Dead Kings.

Escape Artist Avoid 20 grenades by dodging with your Exo.

Who Needs a Pendant? Request Aiello to toss you signal smoke and call in mortar strikes 10 times.

Suppressive Fire! Successfully escort the pole charge engineer to the pillbox in Hill 493.

Well Mannered You completed the Boyle Estate mission without spoiling the party

Concodrance Officer Collect all Trophies

The Devil's Disciple Complete game on "Suicide Mission" difficulty.

You're Outta Here! Plant a Booster Explosive on an enemy soldier. Then send them flying.

One Hard Decision Defeat your father

It's Stuck Prepare a dry landing