Petty Officer 3rd Class Jonathan Szylobryt, hospital corpsman, Marine Special Operations Support Group, U.S. Marine Corps Forces, Special Operations Command planted a Marine Corps flag, at 6,288 feet, at the summit of Mt. Washington, N.H., Jan. 3. - Petty Officer 3rd Class Jonathan Szylobryt, hospital corpsman, Marine Special Operations Support Group, U.S. Marine Corps Forces, Special Operations Command planted a Marine Corps flag, at 6,288 feet, at the summit of Mt. Washington, N.H., Jan. 3.