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You should be looking for Timmy Build a gazebo in a Single Player game

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

Packrat Collect 50% of Data Drive files in the Bloodline expansion

Dogs of war Collect the first dog tag.

Mission Complete Reach Colorado Mastery Level 20.

Ravenous Stud Collector Collect 60,000+ studs in a single streak (no more than a 2 second gap between each stud collected)

Go for Gold! In Onslaught, acquire seven gold chalices

Long Board Ride the Hoverboard for a total of 10,000 meters (electro-mag cables don't count!)

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

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

Bug Spray Earn the Distinguished Flying Service Cross

Celestial Illusion Capture a fantastical creature that floats through the sky.

You Got Mail Open up your inbox while advancing in Career

Back to the roots You have decided to abandon the old continent to its sad fate

Conflagration Finish Mission 6

On the Clock Completed the training in Through the Eyes of Evil in under 18 seconds

Lucky Stiff Found Lucky Montoya's body.

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

Forever Marked Progress the story to unlock.

Rank - Adventurer Builder! Collect 50 Gold Bricks

Heavy Medals Earn All Medals

Lone Champion Complete Lone Fortress on Adventure or Apocalypse difficulty.

Goal Route Activated 10 zones by connecting successful dribbles.

For my next trick Get killed by a sawblade

Gun Nut Equip 15 Weapon Attachments.

Secret Service Kill all the guards in Saint Pierre before getting to the church without being detected

We can kill it... As a Fireteam member, work with your team to kill a Predator

A Man of Principle Complete the SAM'S STORY chapter earning the Captain's full trust.

A big step towards peace You have chosen balance, but you miss some of your allies

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

It's just a scratch Complete THE TWO COLONELS Chapter without using any Medkits on Normal or higher difficulty.

Atomic Obliteration - Complete all the Challenges

Tactics Master Win a Game using every Offensive Style

Dark, Dank and Dangerous Find a Dungeon

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

Seal the Deal Complete a Triumph Seal.

Homebrewer Create three unique alchemical solutions in a single playthrough - bottoms up!

Tick Tock Climb the Clock Tower in 40 seconds in "Dark"

Sayōnara Reach Hokkaido Mastery Level 20.

Hero of the People Complete your first Side Mission

I hate pizza Make the pizza guy lose it.

I Want a Nice, Clean Game Play 5 PVP Matches

Chasers With Extra Responsibilities Intercept a shot on your goals

Bare bones Complete a mission without using any tools.

Ode to Humanity Completed 1 panel of All-Star Battle Mode Part 1.

Botanist Scan all the flora on AR-Y 26!

Helo Hat Trick Destroy each objective helicopter in 'Reactor' with a different Armament

Snow Angel Execute the forest sniper in 'Frozen Tundra' with a takedown

Hitchhiker Defuse the bomb on the truck in 'Gora Dam' while it is in motion

Great Owl Find all the Night Hunters' secret stashes in the SAM'S STORY chapter.