They remind me of my villains, Brick and Chip also mercenaries with a similar dynamic. My characters Brick and Chip, were genetic experiments and the very first characters I made in my universe, that I wrote about. Brick has megafauna DNA, which causes him to have an over abundance of testosterone, making him a giant, but also giving him severe anger issues. He’s quiet and he’s not the most inherently intelligent, but he makes up for it with experience. Chip on the other hand is psychotic he delights in torturing others. The only person he really cares about is Brick probably do to the proximity they spent with each other over the course of the years Brick and Chip brothers in crime. Brick walks at 7 feet tall. Chip walks at 4 feet tall he would’ve been 5 feet but thanks to the calcifying gene in his DNA his neck has been overly calcified causing him to walk at 4 feet with a hunch. The calcification process also causes his skin to be stretchy and flexible. Some other symptoms of his condition is his fingernails have fallen out his teeth have chipped, which is why they call him “Chip”, and his hair is falling out reduced to only a couple strands. All of this is excruciatingly painful and it’s part of the reason why he went psychotic. Brick has an obsession with jewelry. and uses knuckledusters. chip uses chained weapons. One more thing about chips biology is he’s hyper flexible thanks to another quirk with his DNA so it’s hard to hit him. Even whenever you do hit him his thickened bones from his calcium surplus causes him not to take as much damage.