Pterodon today released Vietcong: Red Dawn for the PC, a free add-on to Vietcong, its first-person shooter that takes place during the Vietnam War. The add-on requires the original Vietcong, released in 2003 and also developed by Czech game developer Pterodon. Red Dawn features an all-new single-player campaign titled "Rice Fields." The expansion also features 15 new multiplayer maps that allow different game types, including cooperative play, deathmatch, and capture the flag. To download the free expansion, head over to GameSpot DLX.