Review Detail of CobraAFE in Galactic Almighty Evolution

So far this story just seems to be about the battlefield, and the MC having fight after fight after fight. The MC should have been a top graduate at his high school, and have gotten into a prestigious military academy, but some unnamed guy from his high school ended up slipping him a sleeping drug, so he slept through his exam. So instead he went to the battlefield to work his way up there. Initially he is rather unsuccessful and wants to retire, but after a fight where he explodes himself and an enemy with a grenade he mutates and become stronger. The MC seems great, and the girls in the story are well written so far. But the superior officers and some of the other members of the military seem rather bland and uncaring, but that might just be how military is, I wouldn't know.