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Braaaaaaaaaaaaains! Completed the "Braaaaaaaaaaaaains!" mission

Marathon Discover ALL of the Safe Houses in Manhattan.

Athena, Out Rescued Athena

Gadget Attack Use 5 different Quickfire gadgets in one fight (any play mode)

Spiky Personality - Kill a Helghast using a Burster Killed a Helghast by shooting a Burster plant

Genius Kill 4 enemies with a single smart grenade.

Friendly Fire Show mercy.

Mirage Find the hidden desert flower.

Brothers' Keeper Save your entire platoon during the battle of Somme

Get To the Chopper Don't take any damage during Up In Smoke.

ISA TV - Establish communications Made contact with Earth

Worth the Wait Successfully Extract a contaminated item from the Dark Zone.

Battle Management Kill 50 enemies using only the Attack Command. (campaign only)

Overkill Make an opponent suffer from bleeding, poisoning and burning simultaneously. Do this 10 times.

One Down, Two to Go! Completely upgrade any one wing of the Base of Operations.

The Final Curtain Uncover the fates of Gordon Amherst and Aaron Keener.

Italian Plumber Kill an enemy with a wrench, using Vault followed by Drop Attack

Ménage à trois Complete 5 quests with 3 co-op partners.

Child Of the 80's Beat the top high score of one hideout arcade.

Ding! Overleveled Reached Level 51

Unexpected Package Place 60 bombs in enemy pockets with Bentley.

Originality Play in a co-op team of 4 different playable characters.

Lucky 7 Win 7 coop competitions

Aggravated Assault Stop all assaults in Arkham City

Apollo Wins Have the perfect workout during the Training Montage.

A Line, Crossed Choose vengeance.

Marksman - Sniper Kill 50 enemies with any sniper rifle. (campaign only)

Drift King Perform a 180 powerslide with Dominus or Takumi

Card Collector Acquire all gwent cards available in the base version of the game.

Fixer Upper Completely upgrade any two wings of the Base of Operations.

Damned if You Do Follow your orders.

Master Marksman Kill 50 human and nonhuman opponents by striking them in the head with a crossbow bolt.

Fully Loaded Collect all of Batman's gadgets and upgrades

Visari Ribbon Complete Visari Square on any difficulty level

Bling! Bling! Equip all Equipment slots with Superior or High end Items.

State of the Art Fully Upgrade the Base of Operations.

Hassan Would Be Proud Pickpocket a full collection of every item in the game.

Ran the Gauntlet Finish the game on the "Blood and Broken Bones!" or "Death March!" difficulty levels.

Lean On Me Heal or buff 100 times whilst in a group.

Couch Potato Play an offline-only game. (2P +)

Master Craftsman Craft a high-end item.

The Road Back Live and let live.

Into The Lair - Reach the cable car Reached the cable car and gained access to Stahl Arms South

50x Combo Complete a combo of 50 moves (any play mode, any character)

Cursed Gold Achieve 5 Gold Awards.

Jail Break - Liberate Narville Liberated Narville from Stahl Arms South

Altruist Acolyte Deliver an unsuspecting victim to the Altruist Cult.

The Road To Glory Live and let die.

The Whole Story Finish all side quests

Aim High Kill 250 enemies with headshots. (campaign only)