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

Cliffhanger... Singleplayer: Complete Compromised

Audio Enthusiast Collected all Audio Diaries in Burial at Sea - Episode 1.

Dropping Deuce Singleplayer: Jump 7.5 meters high on the ATV

S.E.R.E. Singleplayer: Complete Neptune's Net

Never Quit Singleplayer: Finish all of Rabbit's missions

Eight Heroes Aboard Singleplayer: Complete Rescue the Rescuers

Rangers Lead the Way Singleplayer: Finish all of Dante's missions

The Battle is Won... Singleplayer: Finish the game on Easy, Normal or Hard

That's How We Roll! You unlocked the special ability of Brucie's helicopter ride.

Sightseer You have taken all variations of the helicopter tours of Liberty City.

Gobble Gobble You got a turkey in 10-pin bowling.

Everyone wears masks Find the Black Mask

Dial B For Bomb You unlocked the special ability of Packie's car bomb placement.

Cleaned The Mean Streets You caught 20 criminals through the police computer.

Glutton for Punishment Used Ironsides to collect 20 rounds of ammo or more in Burial at Sea - Episode 2.

Shut Down Shut down an entire Tower Network

Like a Surgeon Singleplayer: While long range sniping, hit one of every bodypart

Silent Knight Complete a predator encounter using only silent takedowns in the Main Story

Chain Reaction You exploded 10 vehicles in 10 seconds.

One Rule Save a life

Rolled Over You managed 5 car rolls in a row from one crash.

One down, several to go Complete a Most Wanted entry

The Scalpel Singleplayer: Achieve 20 total knife kills

Manhunt You completed the most wanted side mission.

Dropping Acid Dissolve 50 enemies with acid.

The Whole Story Collected all Audio Diaries and Voxophones in Burial at Sea - Episode 2.

Anyone see that? Complete a predator encounter without ever being spotted in the Main Story

Timber! Singleplayer: In Rescue the Rescuers, chop down 5 trees with the Minigun

Finish Him You completed 10 melee counters in 4 minutes.

Perhaps sooner, Perhaps later Defeat the Joker

“Worlds of Hurt” – Tough Guy Rescued the Little Sister in “Worlds of Hurt” using only plasmids, tonics, the wrench, and the research camera, on Medium or higher difficulty

Faster Than a Tortoise Earn any Time Trial Relic

Space Ace Shoot at least 70 targets during the ride to Tau Volantis.

Electric Lawnmower Kill 30 enemies using an electrified Ripper blade.

Pistol Pete Showdown Singleplayer: Get a total of 30 pistol kills

Liberty City (5) Your friends all like you above 90%.

Friendly Skies Defeated all waves in The OPS Zeal.

Vacuum Cleaner Decompress 20 Necromorphs without getting sucked out yourself

Right in the Grape... Singleplayer: Get 7 headshots in a row with any weapon except the long range sniper rifle.

Feeding the Pig Singleplayer: In Compromised, get 15 kills with the M60

Free Flow Fifty Reach x50 Combo in the Main Story

Point to Point Glide across Bridge without touching ground

Mission Impossible Complete the game on Zealot setting

That Old Familiar Feeling Clear The Hallway Of Lasers

TLAD: The Lost Boy Become leader of The Lost. (The Lost and Damned)

“Worlds of Hurt” – Expert Rescued the Little Sister in “Worlds of Hurt” in under 15:00, on Medium or higher difficulty

You Got The Message You delivered all 30 cars ordered through text message.

No More Strangers You've met all the random characters.

No It’s MY Turn Complete a level with Pass N. Play enabled