EightxInfinite

Silver bullet Obtain a silver medal in 10 different challenges

Day 10 Mastered Complete all Day 10 challenges at gold level

Goal Driven Complete 10 Weekly Challenges.

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

Day 6 Mastered Complete all Day 6 challenges at gold level

One Against All Kill Orcus while in a 6 person squad in MWZ

Slaughterhouse Kill 50,000 total Enemies in MWZ

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

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

Indomitable Complete a tower run on Apocalypse difficulty.

Abandon All Hope Rescue 4 survivors in a single game of Infection.

Hugs! Kill 20 enemies in a single burst of Explosive Touch in Carrier.

Day 9 Mastered Complete all Day 9 challenges at gold level

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

Prison Break Complete Quarantine and Suppression in Co-Op Campaign

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

Right of First Defusal Defuse 5 gas bombs in a single match in Carrier.

Under Pressure Complete Breakpoint and Containment in Co-Op Campaign

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

Take Off, Hoser! Ride Chompy for 5 minutes in a single match in Carrier.

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

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

Watching Film Watch a gameplay tutorial video

Songbird Teach your pet 25 different songs

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

Power Overwhelming Unlock every Good Karma Power by purchasing them with Challenge Points.

High Grades Get an "A" rating for a transfer negotiation

Glamor Shot Get featured in the Best Play 3 times

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

Telefragathon Telefrag 50 enemies in a single match in Carrier.

Breaking Ranks Break Every Rank From D To S On The Results Screen

A Taste Of Their Own Medicine Using the Updraft Tome, cast Updraft on three Wind Callers at once.

Memory's Melody Collect and listen to all records from the Forgotten Time.

Day 14 Mastered Complete all Day 14 challenges at gold level

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

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

Day 11 Mastered Complete all Day 11 challenges at gold level

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

Blood-Spattered Savior Rescue a total of 20 survivors in Infection.

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

Hoarder Complete all 6 Calling Card Challenges in any Zombies Category

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

Turn the Tide Complete Abyssal Monument on Apocalypse difficulty.

MEAT IS MURDER Activate Bubby.

Do Your Homework Check a pre-match report, complete a training session and attend a press conference before a match

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

Little Lost Girl In Origins, release Samantha.

Soul Powered Use the Soul Totem of Casting 50 times.

Day 13 Mastered Complete all Day 13 challenges at gold level

I Believe I Can Glide Glide 800m continuously with the wingsuit in Co-Op Campaign or Endgame