whoa, this is surprisingly good online, though I played very briefly. Good maps, jungle and bombed out buildings, etc. It was very smooth though. I'll play more late tonight and give a fuller impression.
Still think the single player is pretty meh...though it can get hard. There are definitely some AI issues and graphic hiccups in single player. Sound is really great.
Easily the best Vietnam game I've played on console this year, though that's not saying a whole lot. If it continues to be good online I'll keep it though.