That's pretty sick, really. I wouldn't want the new Amiga to try and use this sort of game as a selling point.
WWII games are one thing, as it is further in the past, and was a more straight forward "good" against "evil" fight. Vietnam was a horrific war that massacred hundreds of thousands of vietnamese and many many young American conscripts, and a war which most people now realise to be utterly futile. It's going to be hard for a game to portray that one sensitively or realistically (unless the last few missions consist of you frantically running away).