Girls Frontline- The Labcoat

What do I Put here again?
Oh Shit! Right!

So uh, Persica's little bro helps develop AR team. Happy?
Roland is a man of great conflict. Serving in the Marines as a Demolitions expert, he retires to help his sister achieve her dream: Starting up a T-doll manufacturing Lab. Dicey contracts and Shady Buyers plague his otherwise clean life, and maybe even a little bit of persuasion by pointing a gun at someone is involved.
But when Roland sees the chance to join the Dolls at the frontline against a new threat, he Jumps at the opportunity and sees himself fighting a new war:
A war where Humans are Obsolete.
A war where AI and Armored bodies dominate the Battlefield.
Is there even a place for a human like him?
but He's eager to prove that Its not just a frontline for the Girls:
Its his study. The study of how to make a more effective killing machine.

Oh, uh.... I don't own anything except my OC.
I Don't own the cover art either
DO YOU KNOW HOW FUCKING LONG IT TAKES TO FIND GOOD ART OF M4?????

Prototype story. Not developed and I'm not really planning to develop it, feel free to take the story and its ideas if you want.