While a line company is formed of three or four platoons, H&S is made up of the headquarters staff and headquarters support personnel of a battalion, MEU, regiment, MEB, division, or MEF.
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In 1986, Salinas assumed command of Headquarters and Service Company, 1st Maintenance Battalion until 1987, when she became the deputy G-1, 1st Force Service Support Group, both at Camp Pendleton.
His promotion to first sergeant in February 1979 led to his second assignment on Okinawa as the First Sergeant for Headquarters and Service Company, 9th Engineer Support Battalion.
He served as Special Services Noncommissioned Officer, Headquarters and Service Company, 2nd Battalion, 9th Marines and later, as a platoon guide and platoon sergeant with Company H, 2nd Battalion, 9th Marines.