Nope, never stayed there. Fort MacArthur is a former United States Army installation in San Pedro, Los Angeles, California. A small section remains in military use by the United States Air Force as a housing and administrative annex of Los Angeles Air Force Base. It was a Nike Site up until closing in the 70's (I was in HAWK Missiles), I remember guys who were stationed there... That's all, but here is a good history of it:
The Fort MacArthur Museum Association: The History of Fort MacArthur
Good luck on your trip!