In Revelations, wear three different hats.
In Revelations, override all of the Corruption Engines before round 6.
In Revelations, recover the Pack-a-Punch machine from its abductor.
In Revelations, visit every unique location within 2 minutes.
In Shadows of Evil, complete all Rituals.
In Shadows of Evil, kill 5 Parasites while riding on the train.
In Shadows of Evil, purchase and chew every type of GobbleGum in your Pack.
In Shadows of Evil, spot the Shadowman fives times in one game.
In Shadows of Evil, kill 10 zombies that are inside of a store in one game.
Take control of an ASP.
Kill 3 Talons with a single mid-air grenade detonation.
In Campaign, wall run over 250 meters.
In Campaign, kill 5 enemies with 5 different guns in under 30 seconds.
Kill three enemies in a melee combo.
In Campaign, kill 10 enemies in under 3 seconds.
In Campaign, kill 20 enemies while flying the same Talon.
Use an enemy combat robot to kill 10 enemies.
Kill 5 enemies using one burst of Unstoppable Force.
Kill 6 enemies affected by one Blinding Swarm or Firefly Swarm.
In Campaign, kill 5 stunned enemies in under 3 seconds.
Reach Commander (Level 55) in Multiplayer while playing online.
Get 5 Medals based on a Specialist Ability in a single game.
Earn a Gold Rating in the training simulator.
Reach Sergeant (Level 10) in Multiplayer while playing online.
Complete Campaign on Hardened, Veteran, or Realistic.
Complete the Campaign on any difficulty.
Complete the Campaign on Realistic.
Discover all of the collectibles in the Campaign
Fully upgrade a Cybernetics Core.
Complete Lotus Towers on Hardened, Veteran, or Realistic.
Complete Sand Castle on Hardened, Veteran, or Realistic.
In Campaign, unlock all camos for any weapon.
In Campaign, kill 5 enemies from over 100m away.
Complete Demon Within on Hardened, Veteran, or Realistic.
Complete Rise and Fall on Hardened, Veteran, or Realistic.
In Campaign, unlock all attachments for any weapon.
Complete Vengeance on Hardened, Veteran, or Realistic.
Complete Hypocenter on Hardened, Veteran, or Realistic.
Complete Provocation on Hardened, Veteran, or Realistic.
Get a Specialist-based medal that requires 3 or more rapid kills while using any Specialist Weapon.
Complete In Darkness on Hardened, Veteran, or Realistic.
Complete New World on Hardened, Veteran, or Realistic.
Discover all of the collectibles in any Mission.
Complete Black Ops on Hardened, Veteran, or Realistic.
In Campaign, kill an enemy through a wall or obstruction.
Hack the Data Vault and brace yourself for Cyber's Avengening in Dead Ops Arcade 2.
In Revelations, kill 10 enemies in one shot with each wonder weapon.
In Gorod Krovi, kill 10 zombies at once with the Guard of Fafnir.
In Moon, prevent each excavator from breaching the base in one game.
In Gorod Krovi, complete Time Attack: Round 20.
In Gorod Krovi, ride a Dragon.
In Gorod Krovi, complete a Lockdown Event.
In Gorod Krovi, complete all solo Trials in one Zombies game.
In Gorod Krovi, use the Gigant Beam to kill 20 Zombies in one activation.
In Gorod Krovi, kill 8 zombies with a single Dragon Strike.
In Moon, complete Richtofen's Grand Scheme.
In Shangri-La, use the 31-79 JGb215 on each type of zombie.
In Gorod Krovi, launch 10 zombies into the air at the same time.
In Revelations, the Key must be opened.
In Shi No Numa, kill at least one zombie with three different traps in a single round.
In Revelations, complete the cycle.
In Shangri-La, acquire the Focusing Stone.
In Revelations, assist a Keeper in defeating every type of enemy.
In Revelations, kill 40 enemies with a single activation of a Corruption Turret.
In Ascension, kill a space monkey with a fire trap.
In Gorod Krovi, the one must be freed.
In Ascension, escape on all three lunar landers.
In Gorod Krovi, wield the Gauntlet of Siegfried.
In Der Eisendrache, kill every type of zombie using a minigun.
In Zetsubou No Shima, throw up.
In Der Eisendrache, trap and kill a Panzersoldat using the Ragnarok DG-4.
In Origins, complete all 4 Challenges in one game.
In Nacht Der Untoten, do not let any zombies enter the building during the first 3 rounds.
In Verruckt, headshot 20 zombies in the courtyard from the second floor of the Asylum.
In Kino Der Toten, visit every location the teleporter can take you to.
Earn all Decorations.
In Shadows of Evil, use the rocket shield attack to kill at least 10 zombies in one burst.
In Shadows of Evil, summon the Civil Protector in every district in a single game.
In Shadows of Evil, kill 10 zombies ensnared by a Widow's Wine grenade
In Shadows of Evil, kill 2 Margwas in a single round.
In Der Eisendrache, the one must be erased.
In Der Eisendrache, obtain all of the ancient bows.
In Der Eisendrache, upgrade the Wrath of the Ancients.
In Der Eisendrache, revive two players protected by the Ragnarok DG-4.
In Zetsubou No Shima, remove webs in every possible way in one game.
In Der Eisendrache, wallbuy the BRM.
In Der Eisendrache, electrocute 121 zombies.
In Der Eisendrache, use every Wundersphere twice.
In Der Eisendrache, kill a zombie while being flung by a Wundersphere.
In Zetsubou No Shima, the one must be saved.
In Zetsubou No Shima, drink fresh Widow's Wine.
In Zetsubou No Shima, use a plant to return to life.
In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.
In Zetsubou No Shima, kill 10 zombies with a single shot of the KT-4.
In Zetsubou No Shima, stay underwater for one minute.
In Zetsubou No Shima, survive getting consumed.
In Zetsubou No Shima, electrocute a zombie with a shield.
In Origins, release Samantha.
