Isabel Palomer, one of the ten surviving second-gen battleroids, after striking some kind of deal with the Laughing Swarm (from Daemoria's “The Bright Future”) to acquire some better tech. It came with some body modifications, but yannow, that’s already been tampered with.
Mostly wanted to stick Isabel, one of the most likely people to pull something like this, in a bonesuit (the tech in question; to my understanding, it’s organic armour). This is a full-body shot of an earlier doodle; based her suit off of her old Security Officer armour.
Battleroids are a concept from Bungie's Marathon Trilogy; they're described as cyborgs created from the reanimated dead, with heavy internal modifications. The idea that there were multiple generations is mine; the first were deployed at the asteroids Icarus and Thermopylae in 2194, with devastating results (this is the only battleroid incident mentioned in canon).
The second gen, made from living (and unwilling) subjects, were converted by MIDA to fight in the Third Martian Civil War (which began in 2442). Ten battleroids are mentioned as being smuggled onto the UESC Marathon; in my AU-thing, these ten had received alien neural implants instead of MIDA's copies of said implants, and thus were the only ones who didn't go berserk. Isabel's one of these ten.
Her original upgrades include those implants, converted muscle and bone tissue, and various other technological doodads that are visible on her person (seen here on fellow battleroid Vince, though note that only he has that extra port above the white thing on his neck). This translates to superhuman strength and endurance (the games lack fall damage, which is attributed in-story as a trait of the Security Officer's), potentially the ability to affect the fabric of reality (it has to do with Marathon Infinity), and as far as my AU-thing goes, biological immortality.
The Marathon Story Page has tons more info, if you're interested.
I remember the references to the asteroid battles, but I didn't 'connect' it with your mention of Battleroids... as the last 'Battleroids' I came across were from butchered anime series in the '80s. The 10 Battleroids on the Marathon I know, because there is strong implications that the player character is one of them. Isabel sounds like a nice girl, but maybe her friends are a bit suspect. I love the lack of fall damage, and Infinity was very fun, and biological immortality makes good sense for a super-soldier.
The Marathon Story page has a permanent place in my heart.
I like the colors you chose for the carapace, and the jellylike tentacles!