Atari-Roach

One-Four-One Complete the "Kill Switch" Special Ops mission on any difficulty.

Ice in Your Veins Complete the "Black Ice" Special Ops mission on Veteran difficulty.

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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

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

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

I’ve seen some things… In Kino Der Toten, visit every location the teleporter can take you to.

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

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

Taking Flight In Gorod Krovi, ride a Dragon.

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

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

Der Meisterbogenschuetze In Der Eisendrache, obtain all of the ancient bows.

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

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

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

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

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

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

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

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

Not One Inch In Gorod Krovi, complete a Lockdown Event.

Sanguine Serum In Zetsubou No Shima, drink fresh Widow's Wine.

Not Big Enough In Der Eisendrache, trap and kill a Panzersoldat using the Ragnarok DG-4.

Acted Alone In Verrückt, headshot 20 zombies in the courtyard from the second floor of the Asylum.

The Grand Tour In Revelations, visit every unique location within 2 minutes.

Time to Slam In Der Eisendrache, revive two players protected by the Ragnarok DG-4.

Wield a Fist of Iron In Gorod Krovi, wield the Gauntlet of Siegfried.

Elitist GTA Online: Complete all 3 Elite Challenges in The Doomsday Heist.

Blown Away In Gorod Krovi, kill 10 zombies at once with the Guard of Fafnir.

My Brother’s Keeper In Der Eisendrache, the one must be erased.

Fire Mission In Gorod Krovi, kill 8 zombies with a single Dragon Strike.

Iron Lung In Zetsubou No Shima, stay underwater for one minute.

Crop Duster In Zetsubou No Shima, kill 10 zombies with a single shot of the KT-4.

None Left Standing In Der Eisendrache, kill every type of zombie using a minigun.