I would second this (there's an experience list, my own and my significant other's, that I won't go into) - an experienced paint ball player would transition better to a paramilitary force than your average gun nut, especially if you consider at least part of the ex-active military/gun nut crossover section would side with the military. Having said that, military service is venerated enough among his base that if Trump went one way and the military went the other, I think he'd lose hard and fast.

But I don't think DT is even after a (badly run) coup - I agree that he's literally being an incompetent CEO and the Leninist and ostensible puppet master Bannon... possibly thinks he's more clever than he is. Which isn't to say he definitely won't succeed, but Trump's narcissism and the greed for power they both have might end up skewing the odds in our favor.