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

Own the Fog, Be the Fog In The Darkest Shore, kill a Meuchler in the fog

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

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

Gat Trick In Blood of the Dead, kill the Warden with the Blundergat, Acidgat, and Magmagat in a single game

Historical Reenactment In Blood of the Dead, equip Hell's Retriever, Spoon, Blundergat, and Tommy Gun at the same time

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

Wardrobe Change In Revelations, wear three different hats.

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

One Too Many In Zetsubou No Shima, throw up.

Seeds of Doubt In Zetsubou No Shima, the one must be saved.

Assault With Battery In Zetsubou No Shima, electrocute a zombie with a shield.

Vaporeyezed In Gorod Krovi, use the Gigant Beam to kill 20 Zombies in one activation.

Iron Breakers Complete the full Operation Iron Horse raid in a group of eight players.

Cryogenic Slumber Party In Moon, complete Richtofen's Grand Scheme.

Herbal Remedy In Zetsubou No Shima, use a plant to return to life.

The Final Descent In The Frozen Dawn, enter the lost city of Thule.

Throw a Dog a Bone In Blood of the Dead, feed a wolf head from the Gondola, Citadel, and Model Industries in a single game

Wonderful In Revelations, kill 10 enemies in one shot with each wonder weapon.

Abandon Ship In Voyage of Despair, complete the Trial

Power Struggle In Classified, reach round 20 without turning on the power

Most Escape Alive In Blood of the Dead, escape

We've Only Just Begun In The Tortured Path, successfully escape from Into the Storm.

Viktorious Revenge In Gorod Krovi, complete all solo Trials in one Zombies game.

Small Consolation In Shangri-La, use the 31-79 JGb215 on each type of zombie.

The Doctor is In Use PhD Slider to fall 10 feet and kill 10 zombies at once

Web of Defeat In Zetsubou No Shima, remove webs in every possible way in one game.

Das ist gut In The Shadowed Throne, find the Ubersprengen.

Time Attack In Gorod Krovi, complete Time Attack: Round 20.

The Highest Office In Classified, reach round 20 without using an elevator

Zombie Fanatic In Blackout, unlock Bruno, Scarlett, Diego, Shaw, Dempsey, Takeo, Nikolai and Richtofen

Overachiever In Origins, complete all 4 Challenges in one game.

Prestigious Award Attain max level or Prestige with 25 different weapons in Zombies

For The Good Of All In Revelations, the Key must be opened.

Zombiepult In Gorod Krovi, launch 10 zombies into the air at the same time.

Blackout Historian In Blackout, unlock Reznov, Mason, Woods and Menendez

Preemptive Strike In Classified, kill 50 Nova 6 Crawlers without letting them explode in a single game

This Damn Island In The Darkest Shore, explore the entire island.

Little Lost Girl In Origins, release Samantha.

Crawl for Help In Classified, while in last stand use a teleporter and then get revived in a single game

A Better Tomorrow In Revelations,complete the cycle.

Ground Control In Moon, prevent each excavator from breaching the base in one game.

Senseless Axe of Violence In Blood of the Dead, kill 5 zombies with the Hell's Redeemer before it starts its return

Pump It Up In Rave in the Redwoods, Pack-a-Punch a weapon.

Pent-up-agon In Classified, complete 5 consecutive rounds without leaving the war room elevator in a single game

Love And War In Gorod Krovi, the one must be freed.

Ride For Your Life In Rave in the Redwoods, ride every zipline.

On the Clock In Dead of the Night, stay within the clock circle until the time runs out

Going Everywhere Fast In Classified, use a teleporter 7 times in less than a minute in a single game

Breaking the Ice In Classified, shatter 115 zombies in a single game