2015 the developers who brought you the highly acclaimed Medal of Honor: Allied Assault are poised to bring you yet another winner! Men of Valor puts you and your squads in Vietnam this time around.

As of yet there are no demos, but the trailers are so enticing. There is a breath of caution as the game has an 18+ rating due to it's gratuitous use of vulgarity.

http://www.2015.com/games/games_mov.html

Looks very promising at this stage.