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Back Off Down a buster that is reviving another buster

TR's Secret Stash Find the Secret in Act 6.

All in a Day's Work Finish every Match in the Out For Blood Campaign

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

Rival Crusher Earned Gold in all Mission Challenge races

Mech My Day Shoot the pilot out of a Hawk while it's on the ground.

Tier 1 Completed the campaign on Tier 1 difficulty

Top Marks Get all the answers right in the Professor's three quizzes

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

Campaign: EuroCorp Complete chapters 7 and 8 on normal or hard difficulty

Room Clearer Damage three opponents with a single attack

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

Prison Break Complete Quarantine and Suppression in Co-Op Campaign

Vandal Place 100 sprays.
0/100

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

Trick Shot Kill a bird during a winning duel.

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

Right back at ya Break a tether and down the buster who tethered you within 10 seconds

Atomic Heart Complete the game on Armageddon

Grimm's Dark Trip Back Complete the Grimm story on any difficulty.

Booty Bashing Destroy 500 Crates
0/500

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

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

Phol Guy Defeat 40 Hazes of tier 2
0/40

First contact Made some new friends.
1/10

Twisted Achieve a total of 50 Perfect Reverts

New Recruit Unlock your first hero

Under Pressure Complete Breakpoint and Containment in Co-Op Campaign

Tenuous Grasp Find and then lose something valuable

Infernal Jungle Collect 10,000 Aberrant Cinders in Nahantu Helltides.
0/100

MEAT IS MURDER Activate Bubby.

Genius Destroyer Defeat Monsoon without taking any damage on Hard difficulty or above.

Bully Defeat an opponent who is Grabbed by your team-mate

Glamor Shot Get featured in the Best Play 3 times

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

Ectoplasmic Entity Fully Haunt a Location without Getting captured Once

Happy Bath Survival Win in Happy Bath Survival.
*Private Parties and Ranked Parties excluded

Karlan Engineering Destroy a Karlan controlled Siege Mech

Meching Enemies Defeat The FFC Mech Boss

My Friend Ciro Decide Ciro's fate

The End...? Watch the ending movie

This Damn Island In The Darkest Shore, explore the entire island.

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

Gnomed Become downed from your own gnome.

The Struggle Over Self An alternate form of combat, with an alternate path to victory. Get 20 wins in Avatar Battles. But don't obsess over the results. Let experience be your guide.
0/20

Vice Express Take the train

Skullcrusher Defeat Skullface

Last man standing Beat a heist after having been the only one alive. (4 teammates).

Windowlicker Defeat a law enforcer planting C4 in FIRST WORLD BANK on hard difficulty or above. To complete this challenge, you will have to have played the heist from the start.

The Take Disarmed the fire traps in Chateau Haine's vaults. ("Mark of the Assassin" downloadable content)