Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/958086'></iframe> Download Embed Share Marine from Detroit is promoted to gunnery sergeant Marine Corps Combat Service Support Schools April 1, 2025 | 0:21 U.S. Marine Corps Gunnery Sgt. Lauren Fiero, the maintenance management chief of Marine Corps Combat Service Support Schools, and a native of Detroit, recites the oath of enlistment during a promotion ceremony at Camp Gilbert H. Johnson, North Carolina, April 1, 2025. Fiero was promoted to her present rank at the Marine Corps Water Survival School. (U.S. Marine Corps video by Lance Cpl. James Bricker)