Clurh

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

Stay Frosty Complete the "Arctic Recon" 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.

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

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

Off the Deep End In Voyage of Despair, survive to round 20 without draining the water

Here Kitty, Kitty In IX, Kill a Zombie Tiger with a Brain Rotted Tiger

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

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

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

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

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

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.

Centennial Acquire 100% of the Stars

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

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

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

Skilled Adversary In IX have a Challenge banner with all 9 medallions

Swimming with the Fishes In Voyage of Despair, kill 50 zombies that are underwater in a single game

Mental Unblock Get a 350000 Drift Score in Mental Block with Ken's car

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.

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Sleuth Unlock all intel (videos and audio files)

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

Gong like the Wind In IX, defeat all 8 challengers summoned by a gong within 5 minutes

Taking Flight In Gorod Krovi, ride a Dragon.

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

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

Homicidal Kill the guide, you monster.

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

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

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

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

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

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

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

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

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

Appease the Volcano Gods An NPC is destined to die in a trial by fire.

High Score In Zombie Rush, obtain a Personal Score of 250,000

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

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