FourtyOzone

Uncle Time Finish the first mission for each of the 4 time trials.

You Found Me! Discover and fight Hidden Kombatant 1 in Arcade Ladder

Day 6 Mastered Complete all Day 6 challenges at gold level

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

Whirlwind Warrior Using the Tempest Knife, defeat 10 Mountaineer mobs within 10 seconds.

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

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

Ready For Action Complete the Multiplayer Training Course in Black Ops 7

Prison Break Complete Quarantine and Suppression in Co-Op Campaign

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

Third Eye Hit 20 opponents with weapons dropped as secondary weapons

Rags To Riches Have $1 million dollars in the bank while playing in Los Angeles.

Day 9 Mastered Complete all Day 9 challenges at gold level

Under Pressure Complete Breakpoint and Containment in Co-Op Campaign

The Ultimate Race Win 1 Quick Race in the AcceleDrome (not unlockable in Online and Split Screen modes).
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Indomitable Complete a tower run on Apocalypse difficulty.

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

Jack of All Skills Use every Rank 4 skill 20 times.

Nightmare to Dreams Complete the Black Ops 7 Co-Op Campaign

Bad Omen, Good Loot Complete 10 missions where the difficulty has been modified by a Raid Captain's Banner.

Songbird Teach your pet 25 different songs

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

Learner Complete all the tutorials

Clean Sweep of Pandora Complete every Sector Challenge in the game.

"Puny God!" Defeat an enemy

Know-All Obtain all trophies

Maximum Overdrive Equip an Overclock on a Lethal, Tactical, Field Upgrade and 3 Scorestreaks at once

Thanks But No Thanks! Complete a tower without using the services of the Guildsmith, Enchantsmith and Powersmith.

Legendary Collection Collect 100 legendary upgrades

Day 14 Mastered Complete all Day 14 challenges at gold level

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

If you build it, they will come Complete 50 UGC events

Precious Rain Get 25 Crystals from one combo.

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

Jonesing for Relics Return all the Relics to the Museum in single player

Day 11 Mastered Complete all Day 11 challenges at gold level

South Central Test Drive Take 1 South Central vehicle out for a test drive.

Over theeeeeere! Win a match as Allies.

Hoarder Complete all 6 Calling Card Challenges in any Zombies Category

Hot-Footed Hero Complete Cacti Canyon in under 5 minutes.

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

LUNATIC Finish the game in Insane mode

One Good Turn... Inflict maximum damage on an enemy worm the turn after they've inflicted maximum damage on one of your worms during a Ranked Match.

Stay Hydrated! Place a Dried Ghast block into water

Grim Reaper Defeated the Harvester on Hard or Nightmare difficulty ("The Golems of Amgarrak" downloadable content)

Tier 1 Completed the campaign on Tier 1 difficulty

Ignition Upgrade the Tier of an AcceleRacers DLC vehicle to Ultimate.
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Preemptive Strike In Classified, kill 50 Nova 6 Crawlers without letting them explode in a single game

A safer place Sabotage the Soviet space program.

The Speed of Silence Win 3 events in AcceleRacers Career mode.
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