I served in Vientam, not Korea. 12 months with 9th Infantry Division, I was there for Tet, the hottest time of the war. Fortunately I had I job just like Radar's, I was not getting shot at for a living. I remember enjoying the movie and the TV series, but I have not taken the time to re-watch the movie as you rightly suggest. What I CAN say is that, in the TV series, the role/actions of Radar are pretty accurate, with a little bit of poetic license (or Hollywood or whatever) of course. But not too far from reality. Really. In Vietnam we did not have women around so misogyny was not an issue. Absurd things and black/dark humor were common. War does that. I'll try to see if I can find the movie to watch again.