Chokonut

Historian Uncover the secrets of a legendary figure.

Doing Your Part Complete the Training Course in Multiplayer

Winter's End Dispel a myth of ancient days.

Thou Brakest the Head Defeat Leviathan in "Final Fantasy" mode.

Camos Are Forever Unlock any Diamond or Opal Camo

Legend-Marked Impress the Avvar of Stone-Bear Hold and gain their friendship.

Take a Bow In Der Eisendrache, upgrade the Wrath of the Ancients.

Stay Frosty Complete the "Arctic Recon" Special Ops mission on any difficulty.

Spring Roll! Springinate 100 times.

Don't Tread on Me Complete the "Iron Clad" Special Ops mission on any difficulty.

Party's Over In Most Wanted, perform 5 takedowns on guards in the gala without being spotted

Insanity I Complete Mass Effect 1, 2 or 3 on Insanity without changing difficulty

Helipocalypse Destroy 6 helicopters in the "Kill Switch" Special Ops mission.

Get the Bozak Complete Bozak's challenges

Skilled Negotiator Complete the Special Ops mission "Negotiator" on Veteran difficulty.

Survived Nightfall Kill the Breeder for the first time in Nightfall in Regular or Hardcore difficulty.

I said we’re CLOSED! In Nacht Der Untoten, do not let any zombies enter the building during the first 3 rounds.

Bye-Bye, Dark Aether Help the lost scientist complete his experiment

Phantom Exterminator Kill 5 Phantoms in one game in Nightfall in Regular or Hardcore difficulty.

Quick Off Your Feet In Der Eisendrache, wall buy the BRM.

Come Up For Air Reach the top deck in Mayday in Regular or Hardcore difficulty.

Handle with Care Complete the "Special Delivery" Special Ops mission on any difficulty.

EMPressive... Complete the "Kill Switch" Special Ops mission on Veteran difficulty.

Do you even Exo? Exo Melee kill 10 zombies in 30 seconds in Outbreak.

Apex Complete the "Vertigo" Special Ops mission on any difficulty.

Cheapskate Acquire the exo suit without spending any money in Outbreak.

The Eagle has Landers In Ascension, escape on all three lunar landers.

Not on My Watch Rescue all the hostages in the Special Ops mission "Negotiator."

Rush Hour Get a Double Kill with the RC-XD in Multiplayer

Betrayal Kill an enemy from behind at close range while disguised by the Sleeper Agent

Finally Home Complete every Adventure level in The Journey Home.

First Blood Finish a round of Last Stand

To Know Your Enemy... Get 100 Kills while using Mutant Injections in Zombies

Death From Above In Der Eisendrache, kill a zombie while being flung by a Wundersphere.

That’s a lot of Jigawatts! In Der Eisendrache, electrocute 121 zombies.

Firestarter Destroy all the Winter Shards and light all the fires in the Old Temple.

Siege Complete the "Light 'Em Up" Special Ops mission on any difficulty.

Not a Scratch Finish with your tank at full health in the "Iron Clad" Special Ops mission.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Now Who's the Idiot? Finish The Artifact

Full Master Earn all Gold Medals available in Mastery Challenge

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

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

The Boy Who Could Run Complete all Parkour Fever Challenges

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

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

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

A Nightmare On Kusi Street Purge the Infestation on the Mainland

Occasio Calva Complete Kairos Gate.

Together Till the End Be the last man standing