Dark Ops challenges are revealed as you earn them. They do not count toward percent complete. This list is a full list of all available Dark Ops challenges found in the Blackout, Multiplayer, and Zombies on Call of Duty: Black Ops 4
Blackout
Practice Makes Perfect
Shoot a bullseye at the Firing Range from 90 meters.
Zombie Jams
Activate the Jukebox at the Diner.
Red Light, Green Light
Find and be the first to loot the underwater supply stash at the Cargo Docks.
Open The Blast Doors
Open the Blast Doors at Fracking Tower.
Back In The Ground
Kill 100 Zombies.
Stay Tuned
Activate the Emergency Broadcast.
Respect Your Elders
Pay your respects to Tanbor Fudgely.
Baller
Shoot a Basket.
Fist Fighter
Kill an enemy using only your fists.
Multiplayer
Obtained
Earned Dark Matter Camo by earning Diamond on all Weapons in the game.
Relentless Killer
Earn 10 Relentless medals (20 kills without dying).
Brutal Killer
Earn a Brutal medal (25 kills without dying).
Nuclear Killer
Earn a Nuclear medal (30 kills without dying).
Frenzy Killer
Earn a Frenzy kill medal (5 rapid kills).
Mega Killer
Earn a Mega kill medal (6 rapid kills).
Ultra Killer
Get a Ultra kill medal (7 rapid kills).
Chain Killer
Get a Chain (Killed more than 7 players rapidly).
Nuked Out
Earn a Nuclear medal in FFA without using scorestreak rewards.
Gemmed Out
Activate the highest tier of Dark Matter Camo (Nuclear Medal) with every Primary Weapon. Must have weapon equipped.
From The Depths
Get 25 kills against enemies that are on land when you are shooting at them from underwater with primary or secondary weapon.
Shrug It Off
Survive a direct hit from an enemy RC-XD and kill the enemy who was driving it in the same life.
Zombies
Sea Legs
Complete the Main Quest on Voyage of Despair with no downs.
Sands of Time
Complete the Main Quest on IX in under 99 minutes.
Perkless In Prison
Complete the Main Quest on Blood of the Dead using zero Perks.
Put To The Quest
Complete all 3 Main Quests on the first 3 Maps.
Reaper Of The Dead
Get 1,000,000 kills.
Rush On The Bank
Get 50,000,000 total Rush Points.
Perk Maestro
Activate every Perk Modifier.
One Of Us
Complete half of all Dark Ops Challenges.
Stand Trial
Complete Trail #1 for each of the first 3 Maps.
Down With The Ship
Complete 415 Defends on Voyage of Despair in Rush Mode.
Dodgy Devil
Get to Round 20 in Classic Match without being hit.
Pack A Wallop
Double Pack-A-Punch every weapon.