Ive recently just been watching DVD's I have lying around that I havent seen in a while and saw Platoon and I have to say,Lt Barnes is such a great character I can't believe no one has ever tried to use the character other than to basis him off one of the main villians, Krauser, from Resident Evil 4.
Top 3 Vietnam movies
1) Apocalypse Now
2) Full Metal Jacket
Another idea - probably a bad one but it would be interesting if there was a comic series were the characters from each vietnam movie crossed paths.I mean Vietnam is a small country you'd think they'd bump into each other eventually.