Thud Ridge: American Aces in ‘Nam

The game plot is set in times of Vietnam War, where you are American pilot of the Republic F-105 Thunderchief affectionately known as the “Thud”, a conventional strike and “defense suppression” aircraft. North Vietnam was divided up by the US military into a set of target zones referred to for some reason as “Route Packages (RPs)”. The most heavily defended area was “RP-6A”, in and around Hanoi. To enter into this target area, the F-105s had to fly over a region of hilly ground that became known as “Thud Ridge”.