Call of Duty: Black Ops 6 100% Achievement Guide

Steam Community guide by Raptvre.

Intro

First, I need to explain that getting 100% of achievements in Call of Duty: Black Ops 6, will NOT 100% the Call of Duty ® game in your steam library. Each game functions like a DLC in a way for the main game. In order to 100% that, you'll need to own and play MW2 and MW3. There are 44 total achievements in Black Ops 6 as of launch, but I expect this number to change as new zombies maps are released.
Now with that out of the way, I wanted to mention that this is a brand new game, and as such we don't know everything there is to know about it yet. I will update as I play myself, and as the community at large learns and progresses. As always, if there is something specific you want to find CTRL+F to find it quickly, as the more info I add the more bloated the guide becomes.

General

Show Off
Earn a Mastery Badge for any weapon
I personally achieved this with the XM4 at 500 eliminations. Essentially, just find a gun you like and use it enough to earn the mastery badge (the 'gold' one). Each mode has it's own version with different number requirements , so be sure to check that. It's likely that you'll achieve this one without trying if you just play enough.

Return of the King
Enter Prestige 1
You can prestige for the first time once you reach level 55.

Camos Are Forever
Unlock any Diamond or Opal Camo
Camos are earned by getting XP on a particular weapon; the Diamond and Opal camos are the MP and Zombies counterparts of the 2nd tier Mastery camos. First, you must unlock all the military camos with 100 headshots, then the special camos, which have unique challenges, then 1st Mastery camo which is Gold or Mystic Gold, with another unique challenge. Once you've done all that, you need to get all other weapons in that category to Gold. The Diamond or Opal camo will unlock, and your achievement will pop. The fastest way to do this are the Sniper or Shotgun categories, as there are only 2 guns in each, so you only need to get to Gold Twice.

Multiplayer

Doing Your Part
Complete the Training Course in Multiplayer
This one is easy. In the main menu of Multiplayer, select 'Find a Match', then at the bottom select 'Training Course'. Play through all the training station, and when you're prompted to emote, do so, and the achievement will pop.

Betrayal
Kill an enemy from behind at close range while disguised by the Sleeper Agent
Sleeper Agent is unlocked at level 51. Once you've charged it, activate it when hidden. I like to sneak through a side lane. Approach an enemy from behind and hold your melee button [V] to execute, and you'll get the achievement.

Heavy Ordinance Specialist
Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer
Aerial Scorestreaks include UAVs, CUAVs, and Helos. Equip a launcher on your secondary, and always focus on taking them down once they pop up, and you'll get this achievement eventually. The easiest one to hit is the Helo, UAVs and CUAVs are higher in the sky, so you need to lead your shots a lot more to hit them. Alternatively, just use the CIGMA 2B launcher; it can lock onto Scorestreaks.

Podium Finish
Win 25 Multiplayer Matches
Self-explanatory. If you're trying to get this quickly, play Hardcore moshpit games, as they go really fast.

Red Carpet
Get featured in the Best Play 3 times in Multiplayer
Self-explanatory. The game seems to prioritize multi-kills including collateral and lethals. If you play Hardcore anything with Hardpoint, you can chuck your lethal on point pretty much on spawn and you may eventually get a 2/3K. Multi-shotgun kills are also pretty easy to do in Hardcore.

Rush Hour
Get a Double Kill with the RC-XD in Multiplayer
The RC-XD is a Scorestreak that you can equip. It's a little remote car that you drive then detonate. This is not a very hard one to do, just keep playing your best to earn the Scorestreak, then trying to drive it to a lane by spawn to catch people somewhat off-guard. You can also use it on a gamemode like Hardpoint, and wait until the enemy has the hardpoint to drive it in.

Stylish Kill
Get 75 Eliminations while having an active Combat Specialty Perk in Multiplayer
The Combat Specialty Perk is a bonus perk you get when you're using 3 perks of the same type (color). You need to level up to have 3 of the same available to you, the soonest you can do this is at level 11, and it'll be the Strategist (green) perks. Then, just play the game, and this one will pop eventually.

The Pale Horse Arrives
Get 500 Eliminations in Multiplayer
Self-explanatory.

Zombies - General

These achievements can be done on any zombies map:

Cyberized
Research all Augments for 10 Items in Zombies
First you need to be at least level 11. Augments can be researched by going to Weapons >Augments >Research Augments. You can only research one thing at a time, and there are 6 total 'tiers' of research. Which you pick doesn't matter, just farm XP however you find most effective to progress your research. Personally I pick the map I'm most comfortable on, activate the Rampage Inducer, and try to exfil by 21 for bonus XP. Don't forget to equip a minor and major augment for each item you research too!

Annhilation
Get 100 Elite Zombie Eliminations in Zombies
Elite Zombies are things like Abominations and Amalgams. They spawn in increasing numbers on higher rounds, but they start spawning in on Round 16. There's really no trick for this one, but keep powering up your weapons and play a lot.

To Know Your Enemy...
Get 100 Kills while using Mutant Injections in Zombies
Mutant Injections are a Support item that you can pick up and use at any time to become a Mangler for a short period. They have a chance to be dropped when killing Manglers, but a more reliable way to source them is to craft them at a Crafting Table for 2,500 salvage. The first time I used one I got 33 kills without even knowing what I was doing, so you can easily get it in 2-3 tries if you're prepared, and on high enough rounds.

Zombies - Liberty Falls - Wonder Weapon

The wonder weapon on Liberty Falls is called the Thrustodyne M23. You need 3 parts to craft it, and here's how to get them:
Part 1 [Water Pressure Gauge]:
Grab the Valve from the hose in front the of the flower shop (same street as Speed Cola). The Valve can be found here:

Bring it to the bowling alley sprinkler system on the rightmost lane:

You will have to hold it to increase the water pressure fully, so it helps to have someone to defend you while you do this so you don't have to let go. It can be done solo of course, you can let go for a short period of time before the mini-game fails. Upon success, the Water Pressure Gauge will drop.
Part 2 [Handbrake]:
Spend some time in the Cemetery killing zombies, and eventually the Groundskeeper will spawn. he wanders from the higher tier to the lowest before despawning, so make sure to pay attention:

Kill him and he will drop a key to the shack off in the backyard in the house to the right of the Cemetery. Open it, and the Handbrake will be inside:


Part 3 [Electrical Wires]:
The Radio House store has the next part:


You either need to lure a Mangler over and dodge it's blast when aimed at the door to open it, or you need to spend 1250 scrap to craft your own Mangler Cannon to open it yourself. Once open, dig through the piles, and one will drop the Electrical Wires:

Crafting the Weapon:
Head to the upper motel floor that's blocked off by caution tape, and watch out for the zombies that pour out. Inside is the table where you can craft the weapon:

Zombies - Liberty Falls - Achievements

Deadwood
In Liberty Falls, achieve a sporting high score
For this mini Easter Egg, you need to shoot several pairs of bowling shoes around the map to bring you to a mini-game. In this mini game you need to score 300 points to unlock the achievement. If you don't succeed your first try, you are able restart the game after some time so don't worry too much about doing it perfectly. The first pair of bowling shoes are in the gas station building you start the game on top of here:

The second pair can be found in Frank's Hardware:

The third pair are found the first white building to the right of the Cemetary:

The fourth pair are found on top of the coffin in the funeral home across from the bowling alley:

The final pair are hanging off of a tree in the back of the Cemetary:

Once you shoot the 5th pair, everyone is teleported into the bowling alley for the mini-game. It took me a few tries, but I recommend fully charging the ball, and waiting for multiple zombies to be in a lane over rolling it as many times as possible.

World Domination
In Liberty Falls, tap into your Supervillain side
For this easter egg, you first need to get the Thrustodyne M23 wonder weapon. There are 2 ways to do this: craft it, or roll it from the Mystery Box. To get it from the Mystery Box it's either luck, or you can run the Ultra Gobblegum 'Hidden Power'. It gives you a 50/50 chance to get either the Ray Gun or the Thrustodyne M23. To craft it, read my section 'Zombies - Liberty Falls - Wonder Weapon'.
Collecting the Figurines:
Once you have the wonder weapon, you need to suck up all Aetherella figurines on the map to turn into the Superhero for the round. If you want to save it for an opportune moment, leave one for last in a good location. Here are all the spots:
Inside the comic store:




On the streets:





When you get all of them, you''l be transformed into Aetherella for a full round, and the achievement will pop. Save it for a tough round or an Exfil; Enjoy!

Zombies - Liberty Falls - Easter Egg

Bye-Bye, Dark Aether
Help the lost scientist complete his experiment
This is the map-based Easter Egg. It is notably easier than previous EEs if you've played other BLOPs games. The basic steps are below, with added screenshots and as much detail as possible:

• Unlock the Church to access pack-a-punch.
• Retrieve the Thrustodyne M23, either by crafting or through the Mystery Box.
  -See the Zombies - Liberty Falls - Wonder Weapon section for detailed info on crafting the wonder weapon.
• Interact with the SDG generator in the Church to begin the EE.
• Use the Jet Gun to suck up components around the map.
  -Component #1 (Hat)
  *In the Church by Panos.
  
  -Component #2 (Canister)
  *In the roof of the Comic store.
  
  -Component #3 (Gear)
  *In the window of of Buzz's Cuts above Speed Cola. You'll need to jump on top of the truck between rooftops to reach this one.
  
• Unlock roof of Savings and Loans building, and use the workbench to craft the Limited Transdimensional Gateway (LTG) Device.
  
• Return to the generator in the Church, and pick up the Aether Canister. Bring it to the trap on Hill St by Speed Cola.
  
• Place the L.T.G. device by the purple lightning storm in the Cemetery. Defend the portal until the elite zombie spawns in.
  
• Lower the health of the Elite Zombie that spawned in. When you see purple sparks, it's ready. Lure it to where you left the Aether Canister, then activate the trap. Kill it within the purple clouds. If the canister if glowing purple, you did it correctly and you can move on.
  
• Return the filled Aether Cannister to the SDG Generator in the Church within 1:30. Grab the Strauss Counter than the SDG Generator drops. Retrieve the L.T.G. device.
• Use the Strauss Counter to tune 3 different projectors around the map. Pull it out using your tactical button Q, to check the color; you'll need to do this at each projector because it will change. This is the opposite color you want to set the projector light to. So, Counter=Red>Projector=Green, Green>Red, Yellow>Yellow. Here are the locations:
  #1 (Houses by Cemetery)
  
  #2 (Lower Roof of Savings & Loans, need a door-buy to drop down)
  
  #3 (Grass Hill next to Bowling Alley by PHD Flopper)
  
• Once the turrets are properly tuned, repeat the steps at the purple lightning storm in front of the Mystery Box spot near spawn. Grab the Aether Canister from the trap near spawn, and leave it at the trap next to the gas tank.
  
• Open the portal in front of the Mystery Box spot, defend it, spawn the Elite Zombie, and lower its health. Lure it back to the trap and kill it in the purple haze. Return the canister to