I'm surprised that "The Odd Angry Shot" only showed up on a few people's lists (I didn't slog through the middle 8 pages ..... wading through some of the choices made me realize that too many people watch bad war movies. Read that as: bad Hollywood war movies).
This was a memorable one for me: "84Charlie MoPic". It was a movie filmed like a documentary about a 84C MoPic - the US Army designation for a combat-cameraman (film). It was a looonnnnnnggggg time ago that I watched it, but I still remember it as being very good.
"The Wild Geese" was a classic (mercenaries in Rhodesia). "Wild Geese2", not so much.
My favourite "Hollywood" war movie would have to be BoB, but to be fair to a lot of the other movies, BoB had so many episodes to help flesh out the characters, and the average movie only has 90-120 minutes to do the same.
One I liked about the Balkans conflicts was "The Savior". It was somewhat hokey, but had some good scenes.
Al