Sergeant Major Moyer enlisted in the Marine Corps in October 1992 and reported to MCRD Parris Island August 1993. After completing recruit training and Marine Combat Training, he reported to Assault Amphibian Schools Battalion and became an assault amphibian crewman in July 1994, Lance Corporal Moyer reported to Alpha Company 3D Assault Amphibian Battalion, 1st Marine Division where he served as an assault amphibian vehicle crewman and crew chief. In May 1995, Lance Corporal Moyer deployed to Camp Schwab, Okinawa with Alpha Company 3D Assault Amphibian Battalion.
In 1997 Corporal Moyer deployed to the Western Pacific, with Battalion Landing Team 2D Battalion 1st Marines, 15th Marine Expeditionary Unit. Upon return Sergeant Moyer reported to Assault Amphibian Schools Battalion as an instructor.
In October 1999, Sergeant Moyer reported to Drill Instructor School Marine Corps Recruit Depot San Diego and later reported to Kilo Company 3D Recruit Training Battalion. During this time, he served as a drill instructor for four cycles, a senior drill instructor for four cycles, and a series chief drill instructor for three cycles. In 2002, Staff Sergeant Moyer was named Senior Drill Instructor of the Quarter for the third quarter.
In January 2003, Staff Sergeant Moyer reported to Charlie Company 2D Assault Amphibian Battalion, 2D Marine Division where he served as a section leader. In June 2004, Staff Sergeant Moyer deployed with Battalion Landing Team 1st Battalion 2D Marines, 24th Marine Expeditionary Unit for Operation Iraqi Freedom 2-1, 2-2, and 3-1. On November 1, 2004 he was promoted to Gunnery Sergeant.
In February 2005, Gunnery Sergeant Moyer was reassigned to Charlie Company 2D Assault Amphibian Battalion where he served as the Company Master Sergeant and Company First Sergeant. In June 2007, Gunnery Sergeant Moyer attached to Battalion Landing Team 1st Battalion 6th Marines, 24th Marine Expeditionary Unit.
In April 2008, Gunnery Sergeant Moyer was promoted to the rank of First Sergeant and assigned to Kilo Company 3D Battalion 9th Marines. During this time the Battalion deployed to Bridgeport California, Yuma Arizona, 29 Palms California, and Iraq in support of Operation Iraqi Freedom 9-2.
In January 2010, First Sergeant Moyer report to Chemical Biological Incident Response Force, 2D Marine Expeditionary Force in Indian Head Maryland, where he was assigned as the Head Quarters and Service Company First Sergeant. In June 2013, First Sergeant Moyer was promoted to the rank of Sergeant Major and assigned to Recruiting Station Salt Lake City, 12th Marine Corps District. In October 2016 Sergeant Major Moyer reported to The Basic School for assignment as the Combat Instructor Battalion Sergeant Major.
His awards include the Meritorious Service Medal, the Navy and Marine Corps Commendation Medal 3rd award, the Navy and Marine Corps Achievement Medal 3rd award, Combat Action Ribbon, Navy Unit Commendation, Navy Meritorious Unit Commendation, Good Conduct Medal 7th award, National Defense Service Medal 2nd award, Armed Forces Expeditionary Medal, Iraqi Campaign Medal, Global War on Terrorism Expeditionary Medal, Global War on Terrorism Service Medal, Sea Service deployment Ribbon 4th award, Marine Corps Recruiter Ribbon, Marine Corps Drill Instructor Ribbon.