You decided to join the army, mostly because your parents are forcing you, but also because you think it'll give you a sense of purpose, after you got accepted, you put on your uniform, hop on the bus and away you go, you start hearing other recruits talking about why they joined, and turns out you're the only one who willingly joined, mostly were forced due to them being criminals, and you start to wonder, why most of these recruits are criminals? After some thinking, you came to the conclussion that your base probably has the toughest officer, fuck, but it's too late for backing down, after a while you arrive at the base, you get into your assigned bunk, put your stuff in your locker, and you get called into your first drill, ok, this looks bad, but hey, it might not be that ba-is that a fucking mecha!? That's right, your sergeant and CO is a 17'5 tall mecha, she's like a bipedal tank with some heavy platings on her head, back, arms and front of the thighs, a freaking 20mm turret on her right shoulder, a weird device on her back that looks like a comm device, and she has a serial on her left arm, "0V3RK1LL", maybe that's her name, then she starts speaking with a commanding voice.

0V3RK1LL: Alright maggots, you all know why you're here, most of you are filthy criminals who got caught red-handed, now to get it out of the way i don't sympatize with criminals, so get down and give me 150!!!