Different ranks are pinned on to a range coach?s cover as a thank you for helping them qualify as an expert on Carlos Hathcock Range Complex aboard Marine Corps Air Station Miramar, Calif., Sept 20. It is a tradition for Marines to give coaches their rank insignia if it is their first time shooting expert on the range. - Different ranks are pinned on to a range coach?s cover as a thank you for helping them qualify as an expert on Carlos Hathcock Range Complex aboard Marine Corps Air Station Miramar, Calif., Sept 20. It is a tradition for Marines to give coaches their rank insignia if it is their first time shooting expert on the range.