Using Techland's Chrome engine, City Interactive 's The Hell in Vietnam, produced by Men of Valor's Radomir Kucharski, is set during the Tet offensive. This singleplayer demo features one mission, "The Battle of Hue."
Game features:
Become an officer of the US Army and participate in one of its most bloody conflicts.
8 highly playable missions, giving you many hours of great entertainment.
Detailed models of the US Army weaponry from 1968: M16 A1 assault rifle, M14 semiautomatic rifle, M79 CAW grenade launcher etc.
Equally detailed models of the weapons used by the Vietnamese army: AK-47 assault rifle, PPsh 41 automatic, RPG-7 rocket launcher etc.
Various military equipment for both sides of the conflict - PBR patrol boats, Huey and Mi-4 helicopters, BRDM armoured scout cars, and even F-4 Phantom planes.
Source: WP