Fort Hunter Liggett was under the authority of Camp Roberts, California, to the southeast, until 1952, when it became a sub-installation of Fort Ord. From the 1970s through the early 1990s, the base served two purposes — as a training area for the 7th Light Infantry Division (based at Fort Ord), and as the home for the Training and Experimentation Command (USACDEC) (usually abbreviated as CDEC and later as TEC). The mission of CDEC was to evaluate new Army and Marine Corps weapons systems by providing a simulated Soviet Mechanized Rifle Company to act as the "OPFOR", or Opposing Forces. By this method, the Sgt. York anti-aircraft gun was found to have serious flaws, while the Marine's Light Armored Vehicle was validated. , the command is officially designated as the U.S. Army Garrison Fort Hunter Liggett with Parks Reserve Forces Training Area (RFTA) (aka Camp Parks) located in Dublin, California as a sub-installation.