Marine Corps Base Quantico Sgt. Maj. Gerald Saunders addresses Fox Company at The Basic School on Oct. 19. The Marines were being briefed on their role in the upcoming Marine Corps Marathon, which will take place Oct. 25 in Washington, D.C. - Marine Corps Base Quantico Sgt. Maj. Gerald Saunders addresses Fox Company at The Basic School on Oct. 19. The Marines were being briefed on their role in the upcoming Marine Corps Marathon, which will take place Oct. 25 in Washington, D.C.