Sergeant Major Zhorne reported for recruit training in June 1984 at Marine Corps Recruit Depot (MCRD) in San Diego, California. Upon completion of Recruit Training, Private Zhorne reported to Battery P, 4th Battalion, 11th Marines, in Twentynine Palms, California for on the job training (OJT) as a Field Artilleryman. In May 1987, he reported for duty with Battery F, 2nd Battalion, 12th Marines in Okinawa, Japan. In May of 1988, Corporal Zhorne reported back to Twentynine Palms, for duty with Battery N, 5th Battalion, 11th Marines, as a howitzer section chief.

In June of 1990, Sergeant Zhorne was assigned to Nuclear Ordnance Platoon (NOP), 1st Force Service Support Group in Twentynine Palms. Upon completion of NOP School in San Diego, he was assigned the secondary Military Occupational Specialty (MOS) of 2362, Ground Nuclear Ordnance Technician. During this tour, he served as an Assembly Technician and Classified Material Control Center Non-Commissioned Officer in Charge (NCOIC) until the unit’s deactivation in March of 1991. In March of 1991, Sergeant Zhorne reported to Battery I, 3rd Battalion, 11th Marines, in Twentynine Palms for duty as a howitzer section chief. While there, he completed two Unit Deployments (UDP) to 12th Marines in Okinawa, Japan and participated in Operation Restore Hope in Somalia where he served as a squad leader in a provisional rifle company.

In October of 1994, Staff Sergeant Zhorne attended Drill Instructor School at MCRD, Parris Island, South Carolina. Upon completion, he was assigned as a Drill Instructor and Senior Drill Instructor with Mike Company, 3rd Recruit Training Battalion, and as Battalion Operations Chief in the battalion S-3. In January of 1997, Staff Sergeant Zhorne again reported back to Twentynine Palms and served with Battery K, 3rd Battalion, 11th Marines, as a Platoon Sergeant and Battery Gunnery Sergeant. While there he completed one UDP with 12th Marines in Okinawa, Japan.

In June of 1999, Gunnery Sergeant Zhorne reported to the Inspector/Instructor Staff, Battery C, 1st Battalion, 14th Marines, in Waterloo, Iowa where he served as the Field Artillery Chief and Battery GySgt. In March 2002, he was selected to First Sergeant and was assigned to Charlie Company, 1st Battalion, 4th Marines, 1st Marine Division for duties as the Company First Sergeant and participated in Operation Iraqi Freedom I. Upon return to the states, he was reassigned as the First Sergeant for Weapons Company and completed another deployment to Iraq with the 11th Marine Expeditionary Unit in support of Operation Iraqi Freedom II.

In April of 2005, First Sergeant Zhorne was assigned to Golf Company, Marine Combat Training Battalion, School of Infantry at Camp Pendleton, California and then Headquarters and Service Company, Headquarters and Service Battalion as both the Company First Sergeant and then Battalion Sergeant Major until his selection to Sergeant Major in November 2005. In April 2006, Sergeant Major Zhorne was assigned as the battalion Sergeant Major for 2nd Tank Battalion, 2d Marine Division at Camp Lejeune, North Carolina. In February 2009, Sergeant Major Zhorne reported to Combat Logistics Regiment 35, 3d Marine Logistics Group in Okinawa, Japan for duty as the Regimental Sergeant Major.

In October of 2011, Sergeant Major Zhorne was appointed as the 10th Marines Regimental Sergeant Major.

His personal decorations include: Meritorious Service Medal w/one gold star in lieu of second award; Navy Commendation Medal w/two gold star’s in lieu of third award and one combat distinguishing device; Navy Marine Corps Achievement Medal w/one gold star in lieu of second award; and Combat Action Ribbon w/one gold star in lieu of second award.