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Deep Sixed Defeat mother Neptune.

Sierra Hotel Complete three chapters in a row without being killed or reloading a checkpoint.

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

The Golden Fleece Find both trophy pickups in 'Origin'.

Close Quarters Killer - Kill 25 Helghast using Brutal Melee Killed 25 Helghast using Brutal Melee

History Uncover all 10 ancient glyphs.

Flawless Freeflow Fighter 2.0 Complete one combat challenge without taking damage (any character)

This Is My Boomstick Kill 30 enemies with the XM25 in "Black Tuesday."

Cooking up a Deathstorm Complete ''Gridlocked''

Unlocked Potential Fully upgrade a Cybernetics Core.

It's so realistic! Collected 5 3D glasses

Subliminal Find the Delphic Epsilon slide in Ballard's lab, and finish.

True Romance Find both trophy pickups in 'Associations'.

Reign of Terror Kill Diablo in Hardcore mode.

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

The hills of Gallipoli Unlock all Codex Entries in The Runner

Danger Close Take down a chopper with an AC-130 smoke grenade in "Bag and Drag."

My World is Fire Equip the Flamethrower Boost and win a 4v4 Online match

Vertical Mobility Help a grunt become an Overlord.

The Flora Flop Unlocked the Secret Exit in Diggin' It.

Lcnce n Rgstrtn pls Bust 10 Racers in a Mustang

Friend to the Forest Complete "Thy Bard, with a Vengeance".

Black Forest Babies Collect all the items on Black Forest

Birdie Kill 2 enemy helicopters without getting hit in a Special Ops Survival game.

An Explosive Entrance Complete ''Apokolips, Wow!''

Fall Out Girl Annoy Tobi, Kirstie, and Hannah, and finish.

All men dream Unlock all Codex Entries in Nothing is Written

Who's the Hunter Now? Defeat a Hunter.

Informant Collect 22 Intel Items.

That's the Smell Defeat a malboro.

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

Perform a 180 degree Flatspin Awarded for performing a "Flatspin" of at least 180 degrees.

Delaying the Inevitable Save Richard with a serum.

Right 4 Life Complete act 1 with 4 different characters.

Backstage Pass Find all of the Delphic Epsilon locks, and finish.

May His Death Satisfy You Kill Malthael in Hardcore mode.

Kalibak To Basics Complete ''The One With The T. rex Mech''

Bursting Coffers Have at least 100,000 gold.

99 Percent Perspiration Earn 99 lives.

Brainteaser Rescue the fifth hostage from Riddler

Botanist Find all of the oleander petals, and finish.

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

A Stitch in Time Saves 99 Earn 99 Lives.

8 Buster Bust a Racer at Heat 8 or greater

Leave No Gem Unturned Earn 21 Gems.

Ménage à Trois Destroy 3 tanks with a single 105mm shot in "Iron Lady."

Mercy is the Mark You spared Daud’s life

Out of the Frying Pan... Complete "Persona Non Grata", "Turbulence", and "Back on the Grid" on Veteran difficulty.

Blood on Blood Make a Captain kill his bloodbrother.

Life of the Party Send a Destroyer on a Vendetta Mission.