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Down in the Briney Took a Bathysphere ride in Burial at Sea - Episode 1.

Brother Battle Defeat Ligyron.

Pacta Sunt Servanda Finish the "Hearts of Stone" expansion.

Into the Abyss Complete Hypocenter on Hardened, Veteran, or Realistic.

The Great Escape Complete "Desperate Escape" with an S rank.

Way of the Warrior Defeat 150 enemies singlehandedly in one playthrough of "Desperate Escape."

Let's Get This Party Started! Unlock all selectable characters in Versus.

Professional Intruder Collected the clear crystals in Chapter 4-2 without being detected by the security robots

True Understanding Complete all Legends Mode stories on a single difficulty.

Mission Complete Defeat Typhon.

Wish Upon a Star Destroy all 18 of the Score stars found throughout "Lost in Nightmares."

Tippy-Top Reach the highest point on the island.

Show Your Moves Fully upgrade the Skills tree.

Blood for Blood Complete Vengeance on Hardened, Veteran, or Realistic.

Doing Camo Right In Campaign, unlock all camos for any weapon.

Unlocked Potential Fully upgrade a Cybernetics Core.

Shopaholic Buy all the items put on the block at the Borsodis' Auction House.

Hades's New Neighbor Complete 25 Vaults of Tartaros.

Last Hero Standing Defeat all Wraiths in their lairs.

Going Places Rode the tram in Burial at Sea - Episode 1.

Home Sweet Home Occupy The Relay Station (Valley Of The Yetis).

Bird's-Eye View Unfog the whole map.

Night Survivor Defend The Relay Station And Survive The First Night (Valley Of The Yetis).

Friends and Foes Complete Rise and Fall on Hardened, Veteran, or Realistic.

Welcome to Nam DLC Vietnam: Get back your gear at the helicopter crash site.

Cut Your Teeth You were successfully promoted up a rank in multiplayer.

Combo Beginner Achieved 20 consecutive hits with the Combo Meter equipped

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

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

Burial at Sea Completed Burial at Sea - Episode 1.

One More Time Complete a New Game+ playthrough

Servant to the Gods Complete the gods' side questlines.

Curator of Nightmares Recreate all of Iris' nightmares in the Painted World.

Understanding Madness Complete Demon Within on Hardened, Veteran, or Realistic.

Powered Up Fully upgrade the Godly Powers tree.

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

Sting like a Talon In Campaign, kill 20 enemies while flying the same Talon.

Who's the Boss? Defeat the Mythical Monster bosses.

Let the Good Times Roll! Participate in all the activities at the wedding.

Fully Charged Fully upgrade your Stamina.

Fly, Swim, Shoot Complete Sand Castle on Hardened, Veteran, or Realistic.

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

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

To Good Health Fully upgrade your Health.

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

Quick Work Destroyed the 3 anti-aircraft guns in Chapter 8-2 within 5 minutes

Power and Responsibility Complete a playthrough on Ultimate difficulty

200 Stories of Sheer Adventure! Complete Lotus Towers on Hardened, Veteran, or Realistic.

Moo-rderer Kill 20 cows.

Armed and Dangerous Fully upgrade everything at the Forge of Hephaistos.