I would love for this to come out. Because it wont be just some game where "America" loses, it will be some game where EVERYONE loses.
All of the soldiers wishing they were somewhere else, patrols where one of the soldiers fall into a pungi stick trap, and you have to help him out while Vietcong emerge and draw fire on your squad. A game that will depress the ever living shit out of you, a game depicting things that actually happened.
And for good measure, if your fictional (or non fictional) character comes back to America, all of the American people throw shit at you and call you names just because of what some other company did (See My Lai).
THEN as an added bonus! During the credits, you play as a homeless vietnam veteran, YEAH that'll nip it all in the bud.