And don’t forget, Rick, that Ripley tried to tell them exactly what they were facing, and they all had bored, arrogant and/or skeptical expressions on their mugs, and basically shut her down.
IME in Army Green, if a bunch of privates and junior NCO showed that kind of lackadaisial attitude and disrespect in a mission brief, our Top Kick would have made a bunch of size twelve assholes in the whole squad (speaking metaphorically, of course; the First Sergeant has many evil, insanely devious, and occasionally painful ways of making his displeasure known).
Also IME, the only soldiers with that much arrogance and bragadocio would be Marines, Intel, Airborne, and Rangers; most regular troops (Grunts, Scoots, DATS, Cannon Cockers, and Rotorheads) as well as the few true Special Ops. types we dealt with were stone cold pros when it was “game time.”
I mean, yeah, sure, there was interbranch trash talking, but the only time I’ve ever seen a U.S. Serviceman talk to civilians in a manner resembling what we see in Aliens were a couple of Marine boots shipping through Lambert Int’l Airport; a quiet word to the Marine Gunny manning the USO desk was all it took to set those young men straight toot-sweet.
I don’t recall if it was in the novelization, or it it was a fanwank retcon, but Burke essentially picked Gorman because he was an inexperienced “yes man” he thought he could manipulate or browbeat into doing things his way; essentially, kill the bugs, and cover his (Burke’s) ass.