"Vietcong is a tactical first-person shooter computer game, developed by Pterodon and 2K Czech, published by Gathering of Developers in March 2003, and set during the Vietnam War.
The player takes on the role of Sergeant First Class Steve R. Hawkins; born 13th October 1939, in Wilmington, North Carolina, who has been assigned to the United States Special Forces camp at Nui Pek.
In addition to the original game, expansion pack Vietcong: Fist Alpha was released in February 2004, with some new features, and was bundled with Vietcong as Vietcong: Purple Haze for the PC. Vietcong: Purple Haze, was also released in October that year as an expanded version for PlayStation 2 and Xbox developed by Coyote Games. There was also an official add-on released called Red Dawn for free to download off the internet
Although only one vehicle in the games can be personally controlled by the player on a certain map (M151 MUTT), other different vehicles have a role in the games, as either parts of the game or present in cutscenes."
Source: Wikipedia, "Vietcong_(video_game)," available under the CC-BY-SA License.