The reviews I've read so far indicate that Men of Valor is an "ok" war game and the best story-based Vietnam game so far (but that isn't saying much). It is supposed to be very similar to MOH: Allied Assault with a southeastern Asian backdrop. So, if you're looking for the best multiplayer Vietnam game, get Battlefield Vietnam. If you're looking for the best single player campaign, Men of Valor will have to do until something like the "Call of Duty" Vietnam equivalent comes out.