At Keesler Air Force Base in Biloxi, Mississippi, Oswald finished seventh in a class of thirty in the Aircraft Control and Warning Operator Course, which “included instruction in aircraft surveillance and the use of radar.”[36] He was given the military occupational specialty of Aviation Electronics Operator.[37] On July 9, he reported to the Marine Corps Air Station El Toro then departed for Japan the following month, where he was assigned to Marine Air Control Squadron 1 at Naval Air Facility Atsugi near Tokyo.[38] - wikipedia
Whoever made that wiki entry on Oswald is wrong. He was a 98G Russian linguist. He was a pariah at NSA.