FreeeZzer

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

Make it Count Win a ranked multiplayer match.

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Torque Completionist Gain all stars in 'Torque'.

Everyone fights, no one quits Revive 10 downed teammates over any number of Resistance Mode missions.

You know you're REALLY Insane, right? Complete the entire main campaign on Authentic Plus difficulty

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Undiscovered Truths Find all the intel hidden in Nightfall.

Double Vision Trounce the Twins.

Eh...what's up, doc? In cooperative mode, revive wounded players 5 times.

None more hard Complete the Campaign on Nightmare difficulty.

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Wired Up Place 100 wires.

Confidence Boost Win a Battlegrounds league Clan Match.

He knows what they did last era Found all eight audio notes in the Ancient Labyrinth

Burgertown Escort Service Rescue 1 survivor in Infection.

Gut It Out! Win a DiRT Tour event without winning a race.

You're On Fire! Get 5 Kill Streaks of 5 kills in Elimination or Skirmish in PvP.

I kill dead people Killed 40 ghosts in the Ancient Labyrinth

Come On And ... Slam 10 zombies at once in Outbreak.

It's a Dry Heat Kill 3 enemies with a single U4 Firebomb

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

Tumbler Perform an impressive Barrel Roll

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

He Talked Too Much Defeat Emerson Miller

Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

So Euro Enable European competition in the first season of Career

Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

The third faction Rescue all the Buddies from their respective predicaments

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

Last Blood At the end of Guns of Stygia, kill all the enemies on the walkways before the explosions do

Appease the Volcano Gods An NPC is destined to die in a trial by fire.

Ah, what memories! Successfully complete all the Real Events

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

All present and correct! Unlock all the riders in the game

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

High Score In Zombie Rush, obtain a Personal Score of 250,000

Hunger for Justice Win 5 All You Can Eat Matches

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Harvester Of Sorrow Complete the game on Expert

Get him! Win a Quick Race on a track in the Batcave (not unlockable in Split Screen).

Prime Directive Shatter Skeletron Prime.

E Pluribus Unum Earn 20 team citations.

Kung Fu'd It Win 5 King of Kung Fu Matches