Well, as I said, you can keep the warrior goals for the long term, but your problem seems to be stemming from the fact that you are trying to make an ork in power armor while everyone else is making fairly decent to good freshmen hunters.

That is to say, the scales are substantially different. If I recall correctly, the main issue with, say, the reactor idea, was that if shit went wrong (with his old and I believe you specified faulty) gear, was that it was very likely to level the academy simply due to how nuclear reactors [i]work[/i] (and fail). It's just a ridiculous amount of power to be dicking around with, even in the given setting with a large concentration of out-and-out superhumans dotting the landscape. That was what spooked most people, and I think many of the other criticisms were along those lines.

An ork in a world of spess mehrens is perfectly fine, but first-year hunters and huntresses are not spess mehrens. The simple physical capabilities may be comparable, but armaments like a bolter would fuck this entire setting's shit up.