Academy of Villains: Grimme, Weaponry Teacher

This is it. It's all been building up to this. The Merc, the soldier, and finally, the teacher. He's here, and he's ready for the Academy.

Wait, what's with his history? Well you see, that's the thing. I've already submitted his actual history to Kiki, and the headmaster knows it all. Everyone else, they get to learn as we all go. Soooooo, I'll be doing his history as a "What's known" list. It'll grow.

Name: The Merc has used many, many names in his life. Most commonly associated in government documents is that of Grimme
Age: somewhere in his late 20s.
Gender: Male
Race: Caucasian

History:
-He goes by Mister Grimme
-His arsenal suggests an extensive amount of training in all forms of combat.
-Dialogue with Dr. Step has revealed that Grimme is from the U.S. Military, "above Step's pay grade."
-Has a strong affiliation for fishing. Mostly Sharks.

Strengths:
-Expert of most forms of combat (CQC/Unarmed combat, Melee/ knife fighting, pistols, shotguns, SMGs, MGs, Assault Rifles, Bolt-Action Rifles, Grenade launcher)
-Genetically augmented; Bones are far more dense than an average soldier (Calcium and carbon still), making him 3.15 times more durable than an average human in melee, condensed musculature improves strength to 2.13 times that of an average soldier, improved nervous system increases hand-eye coordination and reflexes, as well as information feed back
-Excellent tactician, skilled in guerrilla tactics, small squad fighting, anti-terrorist tactics

Weaknesses:
-Bullets are bullets. His durability is next to worthless against guns (1.15 times that of a normal human). Additionally, his skin is still skin, and is prone to tearing like any other human.
-As a human, he is still very easy to knock unconscious, albeit having a higher pain tolerance
-Prone to excessive pride, though it is tempered by his experience
-His strength, though it can augment his CQC, is only capable of holding an object at full effort and strain, not tossing.
-As a result of his build (Dense), he weighs more than someone for his size.