AM17

Baby Mozart Find and play all the instruments in the game

Justice Is Blind Kill 4 enemies who are stunned by a Flashbang Grenade in any Operation.

Enthusiasms Kill Torres with a melee attack in ‘Hostile Takeover’ Operation.

Catch'em All! Collect all creature entries.

Act 4 Cleaner Complete Act 4 on Nightmare difficulty

He Talked Too Much Defeat Emerson Miller

Knife to meat you Stick a knife in to an enemy

Two's Company, Four's a Party Complete any Adventure level with 4 players.

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

Loot and Pillage Collect $1,000,000

Hi Score Collect 1,000,000 points over all story levels you have played.

The Sound of One Hand Capping Complete ‘Got Your Back’ Operation with only a handgun.

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

The Campsite Reach the road beyond the campsite

The third faction Rescue all the Buddies from their respective predicaments

Wonderful! Perform a 30-hit combo. (Arcade/online only)

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

Beyond the Shades Encounter a former S.T.A.R.S. captain.

Head Trauma Use every type of melee weapon on a zombie

Art Lover Unlock your first Concept Art in the Extra Menu.

Passionate Unlock your first 3D Model in the Extra Menu.

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

Flying pan Kill enemy by ricocheting bullet off frying pan

Mindful Vandalism Place a sticker or a decoration on another player's sackperson.

Pied Piper of Squirreldom Have 5 squirrels following you around at the same time

Gabe Fan Collect all cassette tapes!

That Party was Ace Ace every Adventure level in The Journey Home.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

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

Combinations with Repetition Open your first briefcase.

Gimme Some Skin Play one Versus Match with a Custom Weapon Skin

Save the Girl... Yet Again Save a damsel in distress for the third and final time.

Ender Discover all three endings.

The Trainwreck Cross the river through the trainwreck.

The Chase Survive until you reach the hospital.

Good Father Collect all robot pieces

House Drawings Collect all drawings in the house

It Ain't Easy Being Green Attack all 64 Kerotans
26/64

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Dance Macabre Nail down the opponent's head with the Pitter.

Act 3 Cleaner Complete all Act 3 maps on Nightmare difficulty.

Skitchin' Reach 200 km/h with the Hoverboard for 10 seconds while grappled to a vehicle

It's Duck Season Attack all 64 GA-KOs
18/64

Try this! Collect your first additional weapon.

Barely Made It Jump over a Cultist Bear Trap without triggering it.

Hobbyist Unlock 3 Fighter Card backgrounds.

Seventh Circle Traveler 【RAID MODE】Clear all stages on Abyss.

Troglodyte Kill all scientists with head shots in ‘Self Destructive’ Operation.

Round the Riverbend Find the Secret in Blood Stream.