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Silence is Golden You completed The Brigmore Witches without alerting anyone

Nightmare Descent killer Finish 'Nightmare Descent' on Insane

For my next trick Get killed by a sawblade

Social Butterfly Complete one event with each constructor

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

TRIPLE WHAMMY Jump on a GI Pup's head, then punch the helmet so that it takes out at least three enemies in a row.

RPM Completionist Gain all stars in 'RPM'.

High Roller Complete the "Iron Clad" Special Ops mission on Veteran difficulty.

Call me Ace! Ace all trick types in a Gymkhana Championship event

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Fling Me to the Moon In Der Eisendrache, use every Wundersphere twice.

Elements Completionist Gain all stars in 'Elements'.

Feel the Magic Use Amy's All-Star Move to send Sonic dizzy with love!

Specter Officer Reach max level with one class in the Cooperative campaign.

Old Snake, New Tricks Start a game in Legacy Style

Yeeee HAW! Complete the Adventure Mode on the Hard difficulty.

No Roads Needed Got all four wheels in the air for more than 0.88 secs

Petrolhead Buy all of the Vehicles from the Garage

Bookworm Bookworm - Found all journals

Z-Genocider 2: Genocide Harder Kill 53,596 zombies

Go for Gold! In Onslaught, acquire seven gold chalices

Music Lover Collect all harmonica melodies in the SAM'S STORY chapter.

Ugly Tastes Terrible Play poorly during the final showdown

Seek & Destroy Get 2 Kills with a single remote controlled Throwing Knife from at least 50 meters away in Campaign

Bug Spray Earn the Distinguished Flying Service Cross

That's a Wrap! Unlock all 13 Movie Challenges

Heavy Medals Earn All Medals

A Horrible Night To Have a Curse Survive the nightmare

You have your moments Get 5000 Objective Score while playing as any Hero (Multiplayer)

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

Clock Work Set a Personal Best Time on every Time Trial course.

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Medal of valor Gold rating on every level

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

Skewer the Winged Beast In Under the Radar, have the SAM target itself and the helicopter

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Death of Comedy Use every type of novelty weapon on a zombie

Utility Man Complete all Missions intercepted from cellular tower signals

TOMB RAIDER Save all Red Putties and get to the exit of Level 1.1: Tomb Of King Phut in 1:10 or less.

Pack-A-Punch-ectomy In Revelations, recover the Pack-a-Punch machine from its abductor.

Perfect 10 Pigsy's Perfect 10: Finish the Shooting Gallery under 40 seconds without shooting any pin-ups.

Have You Tried Turning it Off and On? Use a Shock Stick to disable an enemy Sentry Gun

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

Four Birds, One Stone Pigsy's Perfect 10: Kill 4 Mechs with 1 Bomb device.

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

Think She'll Notice? Destroy all of the cars in the mansion garage in 'Oligarch'

Unsinkable Survive a rogue wave taken from the side

Ocelot Always Gets His Man Spot Ocelot in the background when Snake is shaking the President's hand