Sergeant Major Brown was born and raised in Atmore, Alabama. He enlisted in the Marine Corps in 2006 and completed recruit training at 3d Recruit Training Battalion, Marine Corps Recruit Depot, Parris Island, South Carolina. Upon graduation, he was meritoriously promoted to the rank of Private First Class. In September 2006, he reported to the School of Infantry in Camp Geiger, North Carolina where he earned his MOS 0311.

In November 2006, Private First Class Brown reported to 3d Battalion 3d Marines, Kilo Company, Kaneohe Bay, Hawaii. In May 2007, he was promoted to the rank of Lance Corporal. He then deployed to Iraq in support of Operation Iraqi Freedom from August 2007 to February 2008. In February of 2009, he was meritoriously promoted to the rank Corporal. Corporal Brown then deployed to Iraq in support of Operation Iraqi Freedom from March 2009 to October 2009. In May 2010, he was meritoriously promoted to the rank of Sergeant. Sergeant Brown then deployed to Afghanistan in support of Operation Enduring Freedom from May 2010 to December 2010.

In March 2011, Sergeant Brown received orders to Marine Corps Recruit Depot, Parris Island, South Carolina for duty as a Drill Instructor. Upon completion of Class 3-11, he was assigned to Mike Company, 3d Recruit Training Battalion where he held the billets of Drill Instructor and Senior Drill Instructor. In January 2013 he was meritoriously promoted to the rank of Staff Sergeant. From February 2013 to May 2014 Staff Sergeant Brown assumed the duties of 3DRTB Drill Master. 

In June 2014, Staff Sergeant Brown reported to 2d Battalion 7th Marines. From September 2014 to March 2015, he deployed to Kuwait in support of Special Purpose MAGTF 15.1. During the period he served as the Company Gunnery Sergeant for Headquarters and Service Company. Upon return to Twentynine Palms, California, Staff Sergeant Brown assumed the duties of Platoon Sergeant and Company Gunnery Sergeant for Echo Company. From April 2016 to October 2016, he deployed to Al-Taqaddum, Iraq as a Platoon Sergeant in support of Operation Inherent Resolve.

In January 2017, Staff Sergeant Brown reported to the Staff Non-Commissioned Officers Academy, Marine Corps Air Ground Combat Center, Twentynine Palms, California where he served as a Faculty Advisor, Deputy Director, Academics Officer, and Force Fitness Instructor. In September 2017, he was promoted to the rank of Gunnery Sergeant. In December 2018, Gunnery Sergeant Brown received orders to the College of Enlisted Military Education, Quantico, Virginia where he served as the Faculty Development Manager for the Enlisted College.

In September 2021, he was promoted to the rank of First Sergeant and reported to 3d Littoral Anti-Air Battalion, 3d Marine Littoral Regiment, Kaneohe Bay, Hawaii where he served as the Unit Senior Enlisted Leader for Headquarters and Service Battery. He then received orders to 3d Battalion 3d Marines in April 2022, where he deployed from June 2022 to December 2022 to Okinawa, Japan in support of Unit Deployment Program 2-22 as the Unit Senior Enlisted Leader for Headquarters and Service Company. In June 2023, First Sergeant Brown received orders to 3d Marine Littoral Regiment where he served as the Unit Senior Enlisted Leader for Communications Company.  

In May 2024, Sergeant Major Brown was frocked to his current rank and reported to Air Control Training Squadron, Marine Corps Communications-Electronics School in Twentynine Palms, California where he is currently serving as the Command Senior Enlisted Leader. 

Sergeant Major Brown's personal awards include the Meritorious Service Medal with one Gold Star in lieu 2nd award, Navy Commendation Medal, the Navy Marine Corps Achievement Medal with two Gold Stars in lieu 3rd award, and the Combat Action Ribbon.