Command Deck
Page for the Commanding Officer of the Headquarters and Service Battalion
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Colonel Winthrop graduated from the Ohio State University and was commissioned in 1995 as a Combat Engineer Officer.  Upon completion of entry-level training, he served in the 2d Marine Division as a Platoon Commander with the 2d Combat Engineer Battalion, 2d Light Armored Reconnaissance Battalion and Battalion Landing Team 2/2, 22nd Marine Expeditionary Unit.  While assigned to the 22nd MEU (SOC), he participated in the embassy reinforcement in Tirana, Albania in 1998.

     From 1999 to 2001, he served as the Inspector-Instructor, B Company, 4th Combat Engineer Battalion, 4th Marine Division in Roanoke, Virginia.  While in this assignment, he deployed to Macedonia in support of Kosovo Operations.  From August 2001 to May 2002, he attended the Amphibious Warfare School (AWS) in Quantico, Virginia.  Upon graduation from AWS, he was reassigned to the Marine Corps Officers Candidate School.

     From September 2002 to September 2003, he served as the Commanding Officer of B Company, 7th Engineer Support Battalion during Operation Iraqi Freedom.  During OIF I, B Company executed the assault breach of the Iraqi/Kuwaiti obstacle belt in direct support of Task Force Tarawa.  During OIF II, he served as the Operations Officer for 7th Engineer Support Battalion and later the Operations Officer of Combat Service Support Battalion-1 in direct support of Regimental Combat Team-1 during Fallujah Operations.  In May 2005, he was reassigned to Combat Logistics Regiment-15 as the Regimental Operations Officer.  He deployed to Iraq for a third time with CLR-15 in support of I MEF during OIF 05-07.  Upon completion of this tour, he attended the Marine Corps Command and Staff College.

     He was reassigned to the Marine Air Ground Task Force (MAGTF) Staff Training Program (MSTP) in Quantico, Virginia as an instructor in the MAGTF Branch and later the Branch Head of the Exercise Design Division.  While serving at MSTP, he deployed to Afghanistan with Special Purpose MAGTF-Afghanistan as an Operational Planner with 3d Marines.  Upon redeployment from Afghanistan, he attended the School of Advanced Warfighting (SAW).

     Upon graduation from SAW in 2010, he reported to I MEF G-5 as a Regional Plans Officer.  In October 2010 through July 2011, he deployed to the Kingdom of Bahrain with MARCENT (Forward).  Upon redeployment, he served as the I MEF G-5 Chief of Plans.  Later he served as the Deputy G-3, 1st Marine Division before assuming command of the 1st Combat Engineer Battalion.

     He commanded the 1st Combat Engineer Battalion from 2012 to 2014.  He deployed with the Battalion to the Helmand Province, Afghanistan in support of Operation Enduring Freedom from October 2013 until April 2014.    Upon relinquishing command, he attended the National War College in Washington, DC where he earned a Master of Science in National Security Strategy in June 2015.

     Following Top Level School, he was reassigned to the Office of the Secretary of Defense as the Deputy Director in the Rapid Reaction Technology Office and later as the Military Assistant to the Deputy Assistant Secretary of Defense for Emerging Capability and Prototyping.  After his tour at OSD, from 2018-2021 he served at Headquarters, Marine Corps as the Director of Current Operations at Capability Development Directorate, Deputy Commandant, Capability Development and Integration and later, the Futures Branch Head, Logistics Plans, Deputy Commandant, Installations and Logistics.    

     His personal awards include the Defense Superior Service Medal, the Legion of Merit, the Bronze Star Medal with gold star in lieu of second award, Meritorious Service Medal with two gold stars in lieu of third award, Navy and Marine Corps Commendation Medal with gold star, Navy and Marine Corps Achievement Medal, Combat Action Ribbon, and Marine Corps Engineer Association’s Combat Engineer Officer of the Year Award for 2004.

Sergeant Major Tyler enlisted in the Marine Corps and completed recruit training at Marine Corps Recruit Depot, Parris Island, South Carolina in June 1999.  Upon graduation, he attended Marine Combat Training and was transferred to Marine Corps Combat Service Support Schools at Camp Johnson, North Carolina, where he received training as an Administration Clerk.  Upon graduation, he reported to Headquarters Company, Weapons Field Training Battalion, Edson Range, Camp Pendleton, California for duty.  He served as the Orders and Mail Clerk.  He was meritoriously promoted to the rank of Corporal.  In November 2001, Corporal Tyler was reassigned to Recruiting Station Albany, New York, 1st Marine Corps District, Marine Corps Recruiting Command and served as the Operations Clerk and the Administration Clerk.  He was promoted to Sergeant.

              In December 2004, Sergeant Tyler received orders to Drill Instructor School, Marine Corps Recruit Depot, San Diego, California.  Upon completion of Drill Instructor School, he was assigned to Company I, 3rd Recruit Training Battalion, where he served as a Drill Instructor and Senior Drill Instructor.  He was promoted to Staff Sergeant.  In April 2008, Staff Sergeant Tyler transferred to 7th Communications Battalion, III MHG, Okinawa, Japan and assumed the responsibilities of the Legal Chief for the unit.  Staff Sergeant Tyler transferred to Headquarters Company, Headquarters & Service Battalion, Marine Corps Base Camp Butler, Okinawa, Japan in July 2008, and served as the SNCOIC for the Legal and Promotion Section in the IPAC.  He was promoted to Gunnery Sergeant.  In April 2009, Gunnery Sergeant Tyler commenced training with the Regional Corps Advisory Command (RCAC) 3-7.  He deployed with RCAC 3-7 in July 2009 for 9 months as an advisor to the    G-1 Sergeant Major for the 101st Corps, Afghan National Army, in Wardak District.  He also provided administrative support for over 150 Marines and Sailors assigned to the Embedded Transition Teams.   

              In January 2011, Gunnery Sergeant Tyler transferred to Marine Corps Base, Quantico, Virginia and served as the SNCOIC for the Customer Service Department, and the Quality Assurance Department, IPAC.  He also served as a summer augment in 2011 and 2012 as a Sergeant Instructor at Officer Candidate School.  In April 2013, Gunnery Sergeant Tyler transferred to Officer Candidate School.  He served as a Platoon Sergeant, Company C, and as the Drill Master for Officer Candidate School.  In March 2014, he was promoted and served as the Company First Sergeant for Company C, Officer Candidate School.   In November 2015, First Sergeant Tyler transferred to 1st Marine Raider Battalion, Marine Special Operation Command and served as the Company First Sergeant, Marine Special Operations Company A (MSOC A).  He deployed in January 2017 to Camp Navarro, Philippines, and served as the Senior Enlisted Advisor for Special Operations Task Force 511.2 in support of counter terrorism operations, which led to the establishment of Operation Pacific Eagle-Philippines. 

              From June 2018 to June 2020, Sergeant Major Tyler served as the Squadron Sergeant Major, Marine Aerial Refueler Transport Squadron 152 and transferred on 12 June 2020 to Marine Aviation Logistics Squadron 12, Marine Aircraft Group 12, 1st Marine Aircraft Wing, Iwakuni, Japan.  In July 2021, Sergeant Major Tyler transferred to Headquarters & Service Battalion, Headquarters Marine Corps, Henderson Hall, Arlington, Virginia and assumed his duties as the Sergeant Major on 13 August 2021. 

              Sergeant Major Tyler's personal decorations include the Meritorious Service Medal with a gold star in lieu of second award, Navy and Marine Corps Commendation Medal with three gold stars in lieu of fourth award, the Navy and Marine Corps Achievement Medal with two stars in lieu of third award, and Drill Instructor Ribbon with one star in lieu of second award.