Can't Hide In Campaign, kill an enemy through a wall or obstruction.

In Campaign, kill 10 enemies in under 3 seconds.

Use an enemy combat robot to kill 10 enemies.

In Shadows of Evil, spot the Shadowman fives times in one game.

In Shadows of Evil, complete all Rituals.

Reach Sergeant (Level 10) in Multiplayer while playing online.

Get a Specialist-based medal that requires 3 or more rapid kills while using any Specialist Weapon.

In Shadows of Evil, kill 2 Margwas in a single round.

In Shadows of Evil, purchase and chew every type of GobbleGum in your Pack.

In Shadows of Evil, kill 10 zombies ensnared by a Widow’s Wine grenade.

In Campaign, unlock all attachments for any weapon.

Complete Black Ops on Hardened, Veteran, or Realistic.

In Der Eisendrache, upgrade the Wrath of the Ancients.

In Ascension, escape on all three lunar landers.

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In Campaign, kill 20 enemies while flying the same Talon.

In Campaign, kill 5 enemies from over 100m away.

Complete New World on Hardened, Veteran, or Realistic.

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Reach Commander (Level 55) in Multiplayer while playing online.

In Der Eisendrache, electrocute 121 zombies.

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

In Campaign, unlock all camos for any weapon.

Complete In Darkness on Hardened, Veteran, or Realistic.

Kill 6 enemies affected by one Blinding Swarm or Firefly Swarm.

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

In Gorod Krovi, ride a Dragon.

In Der Eisendrache, obtain all of the ancient bows.

Complete Provocation on Hardened, Veteran, or Realistic.

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In Gorod Krovi, complete a Lockdown Event.

Get 5 Medals based on a Specialist Ability in a single game.

Complete Hypocenter on Hardened, Veteran, or Realistic.

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

In Origins, release Samantha.

Complete Vengeance on Hardened, Veteran, or Realistic.

Complete Rise and Fall on Hardened, Veteran, or Realistic.

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

Complete Demon Within on Hardened, Veteran, or Realistic.

In Gorod Krovi, wield the Gauntlet of Siegfried.

In Der Eisendrache, use every Wundersphere twice.

Complete Sand Castle on Hardened, Veteran, or Realistic.

Fully upgrade a Cybernetics Core.

Complete Lotus Towers on Hardened, Veteran, or Realistic.

In Shadows of Evil, kill 5 Parasites while riding on the train.

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In Nacht Der Untoten, do not let any zombies enter the building during the first 3 rounds.

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

In Zetsubou No Shima, survive getting consumed.

In Origins, complete all 4 Challenges in one game.

In Kino Der Toten, visit every location the teleporter can take you to.

In Revelations, visit every unique location within 2 minutes.

In Moon, complete Richtofen's Grand Scheme.

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

Complete Campaign on Hardened, Veteran, or Realistic.

In Campaign, wall run over 250 meters.

Discover all of the collectibles in any Mission.

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

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

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In Campaign, kill 5 stunned enemies in under 3 seconds.

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In Zetsubou No Shima, throw up.

In Shadows of Evil, use the rocket shield attack to kill at least 10 zombies in one burst.

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

Take control of an ASP.

In Der Eisendrache, trap and kill a Panzer Soldat using the Ragnarok DG-4.

In Der Eisendrache, wallbuy the BRM.

Kill three enemies in a melee combo.

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

In Shadows of Evil, summon the Civil Protector in every district in a single game.

In Ascension, kill a space monkey with a fire trap.

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

In Zetsubou No Shima, electrocute a zombie with a shield.

In Shadows of Evil, kill 10 zombies that are inside of a store in one game.

Kill 3 Talons with a single mid-air grenade detonation.

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

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

In Revelations, wear three different hats.

In Zetsubou No Shima, stay underwater for one minute.

In Der Eisendrache, kill every type of zombie using a minigun.

Earn a Gold Rating in the training simulator.

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

Discover all of the collectibles in the Campaign.

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

In Shi No Numa, kill at least one zombie with three different traps in a single round.

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Kill 5 enemies using one burst of Unstoppable Force.

In Campaign, kill 5 enemies with 5 different guns in under 30 seconds.

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

In Gorod Krovi, complete Time Attack: Round 20.

In Shangri-La, acquire the Focusing Stone.

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

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

Earn all Decorations.

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

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