UncleRadek

Backstabber Kill 20 enemies with melée while they are idle

Arms Dealer Buy all items from the Survival Weapon Armory.

Betrayed! Survive the Ambush at the Church

Ain't He the Cutest? Collect a Bobblehead

Why don't you get a job? Win against PinStripe in the Adventure Mode.

The Never Ending Combo Achieve a 200 Hit Combo

Power is Everything Obtain five highly rare weapons.

Brain Pain Train Slain Defeat Locomöbius.

OPERATOR Acquire a full set of OPERATOR gear

This! Is! Keystone! Kick an enemy into his death

Natural Win a race without using any Power-Ups.

The Secondary Specialist 250 Kills with a Secondary Weapon

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

It Takes Two to Tango Chain a 40-defeated combo in Team Slayers.

Big Tournament Completed each of the larger challenges in all 3 coliseums

Sunday Driver Complete the driving portion of S.O.E. without hitting any obstacles.

Apprentice Reach Prestige Level 25

Tactical Specialist Get 5 Medals based on a Specialist Ability in a single game.

Explosives Expert Get 150 kills with the Carbine 40mm, LAARK, or frag grenade in the single player Campaign.

Blade Runner - 75 kills with the knife Kill 75 Helghast using the knife

Go breaking my heart Collected 9 Tyrant Hearts

Maximum Firepower Take control of an ASP.

Run the Gauntlet Complete "Desperate Escape" on Professional.

Helping Hands Revive a Co-op player 20 times

Photo-Finish Beginner Gain a star in any event of 'Photo-Finish'

Final Departure Complete "Final Departure"

DLC: Zombies: Killer BeeZ Destroy all the Zom-bee nests in Laboratory of the Dead.

Barkeep Began Sammy's Renovation

Trauma Center Defeat Dr. Benedict.

The Hammer Strikes Complete 'Their Land, Their Blood' on Veteran difficulty. (Solo only)

Interstellar Challenge Win against Nitros Oxide in the Adventure Mode.

Bristles for All Capture a stiff, bristly creature.

Poncho'd Out Complete the Combo Chicken quest (Defeat Poncho forever)

Army of One Win 15 matches in Slayers.

Paint Splurge Fire 5,000 paintballs

All in Defeat a boss with at least 20000 unspent experience

Fool of a Tuck Throw a corpse down the bottomless pit in Catacombs

Bouncer Keep Chimeran forces from entering the Brewpub

Not out of Gobblegum! In Shadows of Evil, purchase and chew every type of GobbleGum in your Pack.

Sphinx' Riddle Complete all 40 of the Catwoman Riddler grid items

In Their Sleep In Campaign, kill 5 stunned enemies in under 3 seconds.

Overachiever Earn 48 stars in Special Ops Mission Mode.

Spitting Lead Kill 50 enemies using the Wraith with the force barrier engaged in the single player Campaign.

Red Wrath and Beyond Defeat Psychoreaver.

Perfect Win Beat the game without continuing.

“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

Finish Him You completed 10 melee counters in 4 minutes.

Go with your gut Chose all of the Heart decisions

Winter Will Not be Contained! Collect all the items (Snowglobes) on Krampus Lair

Skip Trace Completed all Bounty Hunting assignments