Okay, this whole thing was dumb as hell. In fact, every time the MC tries to "hide" his power, it's dumb as hell since he uses it anyway.
You'd think being the summoned Hero would've made his smarter about it. Like, taking advantage of a distracted gunman and simple beating him hand-to-hand, using magic to confuse the guy. He's OP as it is so might as well make it look genuine.