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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.

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

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

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.

Movies: Gone! Escape the cops in the Shelby GT500™ (Single Player)

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

Once More Into The Fray Begin the hunt

Velocity: On Final Approach Unlock either Jump Nitrous PRO or Drift Tires PRO (Multi)

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

Making Progress Reach Level 10
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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

Taste of Your Own Medicine Complete the first interrogation

A Better Tomorrow In Revelations,complete the cycle.

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

Easy Rider Get the train moving again

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

Retail Therapy Play 10 games in Missile Mall
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Born Winner Win a Deathmatch Game

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

Fool For The City Complete "Operation Siberian Strike"

One Worm Army Get a kill with each weapon and grenade

Learning To Fly Complete the second interrogation

Go Sports! Play 10 games in Portal Park
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Love And War In Gorod Krovi, the one must be freed.

With A Little Help From Friends Complete "It Takes Two"

Actions Speak Louder Than Words Complete the third interrogation

High Life Play 10 games in Transforming Towers
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Down Under Complete "Last Rites"

Helping Hand Completed all missions for a townsperson

Swing Batter Batter! Rebound a Bazooka projectile with the Baseball Bat

Shadow Man Sneak through the underground storehouse undetected

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

Shock Value In Classified, kill 115 zombies with electric traps in a single game

Quick Thinking In Dead of the Night, unlock the Forest by round 7

Keep Close In Revelations, assist a Keeper in defeating every type of enemy.

Getting Tail in Siberia Collect all secrets in Siberian Strike campaign

Step on the Gas In Classified, kill 50 zombies while affected by Nova 6 Crawler gas in a single game

Time Travel Will Tell In Shangri-La, acquire the Focusing Stone.

Cold War Remedy In Classified, retrieve and equip the Project Skadi prototype

Death Ray In Revelations, kill 40 enemies with a single activation of a Corruption Turret.