Notes: This is an elderly tank destroyer based on the chassis of the M-3A1 half-track armored personnel carrier of World War 2. The 75mm gun is mounted in the rear compartment and has limited traverse, firing over the front of the vehicle. Three pintle mounts are included on the rear and both side walls, as well as a heavy machinegun mount, for local and antiaircraft defense.

Twilight 2000 Notes: This vehicle was very rare in the Twilight War, but still used by a few Latin and South American countries.

Notes: This is a tank destroyer based on the M-4A2 Sherman tank chassis. It was developed to provide, fast, lightweight antiarmor vehicles, but was used primarily for infantry support as it could not go toe to toe with German tanks. By 2004, most of these vehicles were found in South American countries to provide fire support to mechanized infantry units, rarely being used to combat tanks.

The M-10A1 is the same vehicle as above, but based on the M-4A3 Sherman instead of the M-4A2. It uses a shorter-range gasoline engine and is somewhat lighter.

Notes: This old World War 2 tank destroyer is still in use by some South American and Southeast Asian countries, most notably Venezuela, who uses them in fairly large numbers. It was designed to be smaller, faster, and lighter than a tank, while using a more powerful gun (for the time). By 2004, most of these vehicles were in infantry fire support roles or static antitank defensive positions. The vehicle is hampered by high fuel consumption.

Notes: This old warhorse is still in use by some South American and Southeast Asian countries. By 2004, is it being used primarily as an infantry support vehicle or in the static antitank role by South American and Southeast Asian countries. The Jackson is similar to the M-10A1, but has a 90mm gun instead of the 76mm gun.