Alright, so obviously there's a lot of influence of medieval knight armor, so my first line of thought was adding some sort of magic system. Initially I was like "well, can't use the magic system I have in my original stories, since Revenant AU is based on that, and if I do that again it would be way too similar". I considered scrapping magic off this AU completely, because I didn't think I could make a magic system different enough from rev AU to not be just the same thing but To The Left. And then it hit me.

COD already has a magic system. In Zombies.

Now, the Aether is not really treated as magic, more like scientific phenomena, but it's practically magic, taking to account the field upgrades, and its effect on living being (zombies, and special zombies like manglers, mimics, disciples...).

And the moment I thought about that, everything started clicking together.

Picture this, post apocalyptic world. Operation Deadbolt failed, and the Aether spread from Urzikstan to the rest of the world. Decades later, humanity found ways to ward it off, leaving swaths of land infected with the Aether, quarantined away from the remaining human cities.

This quarantine isn't perfect, however, and certain Aether forms threaten the delicate peace on the cities. This is where the Cyberknights come in.

Using Aether portals (the ones in-game), they teleport deep into Aether territory, and with motorcycles traverse the land, tracking big Aether forms that pose a big enough threat.

Scientists have found ways to build weapons made of Aether. The more in the metal, the better, so guns were now dwarfed by the power of swords and spears. These new weapons use the Aether of fallen enemies as a power source, for charging a powerful attack (in-game they're called Field Upgrades, and I'm giving them a lore explanation as to why it takes a while to charge them, and why it charges by killing zombies).

There are a few types of Aether forms: Aether-Mechanical (think the Manglers from the game), native Aether forms (Disciples, mimics, Aether worm), and infected Aether forms (humans turned zombies). Because of that, each unit must include at least one of each: a mechanic (in charge of equipment, and the mechanical nature of Aether-Mechanical forms), an Aether expert (for teleporters, and Aether forms in general) and a fighter (acting as sort of a tank as the others work).

I also thought a bit about the 141's weapons and field upgrades, so here's a little blurb on each:

Soap - Wields 2 short swords, the right with Cryo Freeze (Ammo Mod in-game), and the left with Napalm Burst. Field Upgrade is Frenzied Guard: Killing zombies grants a shield, but all hostiles are attracted to Soap once he turns it on. This Field Upgrade is usually reserved for fighters, which Soap used to be, but he's now acting as a mechanic for the 141 unit.

The blue and red in his design are for his ammo mods, ice and fire, and the helmet obviously resembles his hairstyle. Originally I went for something more Scottish, but it didn't look exactly like I imagined (Scottish warriors were notorious for not wearing a lot of armor, and they kinda scared other cultures, sometimes carrying the head of their enemies to intimidate others. So metal haha).

Gaz - Wields a spear, that uses Aether as a sort of magnetic force, meaning he can throw it and pull it back. Field Upgrade is Energy Blast: turning it on will create a force field around him, pushing and injuring anyone attempting to get close to him (this is a modified version of the Energy Mine in MWZ, just thought I can make it more interesting).

The purple on his belt are Aether crystals, as he's the 141's Aether expert. The "horns" on his helmet are actually a detector of Aether forms (and they're there to look cool).

Price - Wields a foldable shield, and a short sword, with Brain Rot applied to it (Brain Rot will make a zombie turn to your side for a short while, attacking hostiles for a few moments before their head explodes). Field Upgrade is Healing Aura, which will... heal everyone around him, obviously. Price is the fighter of the 141.

Price is nicknamed "The White Knight", as a well known fighter with a long history of felled Aether superforms. The piece on his right arm (his right), is his shield in folded form.

G.H.O.S.T. is a robot, powered by Aether, the first of his kind. This means he uses 2 Field Upgrades: Aether Shroud, making him go invisible for a short while, and Tesla Storm, which channels bolts of electricity through his body and his teammates', as well as his knives, so he makes sure to throw them in tactical positions before activating this. The electricity doesn't hurt his teammates, their armor makes sure of that, but it will kill lower Aether lifeforms, and damage the stronger ones. G.H.O.S.T. is the secondary fighter of the 141.

G.H.O.S.T. - Wields several knives, that use a similar technology to Gaz's spear, meaning he can pull them back at will.

[Edit: forgot to mention that the things sticking out of his forearms are his knives]

His design is based on the "Gilded Ghost" skin in-game, without the gilded part lol. The purple parts are the Aether powering his mechanical body.

For the story, I have something planned... but I don't wanna spoil you lmao. I was thinking a lot about Soap, who (if I make a fic which lets be honest I probably will) will be the POV.

Soap joins the 141 mainly as a mechanic. Each unit has a fighter, a mechanic, and an Aether expert. Gaz is the Aether expert, and Price is the fighter, G.H.O.S.T. acting as a support for Soap when the unit splits up. Soap comes from the northern territories, so he's very different from the rest in terms of his background, basically an outsider. He used to be a fighter, but a knee injury forced him to change positions. All members of a unit can fight, but it's not their main job, bar the fighter of course. He feels bitter about that.

He finds in G.H.O.S.T. an odd companionship, considering the robot can't feel. His AI is exceptionally advanced, so he does talk unnervingly, almost like a human. Soap often just rants, talking about his home city, about the life he used to have, and G.H.O.S.T. listens with no complaints, not that a robot can really complain.

It all changed on one fateful deployment, where Soap and G.H.O.S.T. get separated from the rest, and Soap finds the truth behind G.H.O.S.T.'s technology...