The V-100 in with the ARVN mainly saw service in armored car elements of armored cavalry units, but also as part of the mechanized platoons of the South Vietnamese Regional Forces. Compared to the American counterparts ARVN V-100 units had larger crews, including a commander riding shotgun, and a radio operator outside the rear hatch. Another model, the XM706E2, was supplied to the U.S. Air Force for base protection purposes, post-attack reconnaissance against munitions and EOD use. The XM706E2 featured no turret and an open-topped center parapet. In practice a variety of weapons were mounted on USAF XM706E2s, but the most common configuration was one M2HB machine gun and one M60 machine gun. Other equipment included the XM174 40 mm grenade launcher and searchlights. The 3rd Security Police Group of the United States Air Force at Clark Air Base Republic of the Philippines was still operating the "Duck" as a Fire-Team vehicle until it received M1026 HMMWVs in the fall of 1988. The vehicles were then semi-retired, and occasionally used as "steel" bunkers at the gates, because of the difficulty in keeping the 20-year-old vehicles running. The V-100 carries a maximum crew of two with up to 10 passengers. In road patrol, convoy duty and base defense use by the U.S. Army's Military Police, it usually had a crew of two: driver and gunner. Additional armament often included two or three top-mounted M2 or M60 machine guns. Other weapons such as M134 Miniguns were also sometimes used. Passengers could also use their personal weapons to fire through the vehicle's various gun ports. In spite of its effectiveness during the Vietnam War, the U.S. military made limited use of the V-100s after the war, deploying only small units of the armored cars with U.S. Army Military Police platoons at the Herlong Army Depot in California during the 1970s, or other related sites across the country. The remaining V-100s were expended as "hard targets" for tank and machinegun ranges throughout various military installations. Survivors remain in service with various smaller forces, such as the People's Army of Vietnam, Royal Thai Army, Republic of China Military Police, the Philippine Army, Marine Corps, and Special Action Force of the Philippine National Police, the Lebanese Armed Forces, the Army of Venezuela and the Jamaica Defence Force. It was used by the Malaysian Army in Second Malayan Emergency (now retired) and Royal Malaysian Police (GOF- Pasukan