Lieutenant Colonel Murphy enlisted in the Marine Corps Reserve in October 1998, attending recruit training at MCRD Parris Island, SC. He was assigned to MACS-24 Detachment ‘B’ at NASJRB Willow Grove, PA as a Heavy Equipment Mechanic. LtCol Murphy was commissioned a Second Lieutenant in April 2000. Upon completion of The Basic School, Air Support Control Officer’s Course and Surface-to-Air Warfare Officer’s Course he reported to MASS-2 in Okinawa, Japan in June 2001. In January of 2002, he was assigned to HMH-262 (REIN) as part of the Air Support Element (ASE) of the 31st MEU (SOC).
In September 2002, LtCol Murphy reported to MASS-3 at MCB Camp Pendleton, CA. In January 2003, he deployed with MASS-3 in support of Operation IRAQI FREEDOM. During combat operations, LtCol Murphy served as a Tactical Air Director in the Direct Air Support Center (DASC) (FWD). Upon completion of combat operations, he served as a Senior Air Director and DASC (Airborne) OIC during security and stabilization operations. In February 2004, he deployed again in support of Operation IRAQI FREEDOM II serving as the OIC for the Regimental Combat Team 1 Air Support Liaison Team in Fallujah, Iraq. In September 2004, he took command of Air Support Company at MASS-3.
From May 2005 through August 2007, LtCol Murphy was stationed at RAAF Base Williamtown, Australia serving as an exchange officer with Headquarters 44 Wing of the Royal Australian Air Force. In September of 2007 he rejoined MASS-3 and deployed again in support of Operation IRAQI FREEDOM from January to August of 2008. During this deployment he served as a Senior Air Director with the Main DASC and as an ASE OIC supporting the British during unrest in the city of Basrah. In November 2008, he became the MACG Detachment Commander for the 11th MEU deploying throughout the Pacific and Persian Gulf from September 2009 through April 2010. He next joined MTACS-38 at MCAS Miramar, CA as the Operations Officer in June 2010. During this time, he deployed to Afghanistan in support of Operation ENDURING FREEDOM where he served as the Operations Officer for MACG-38 (FWD) from September 2010 through March 2011.
LtCol Murphy graduated Marine Corps Command and Staff College in June 2012 with a follow-on assignment as the Air Support Lead at Aviation Expeditionary Enabler’s Branch, Headquarters Marine Corps Aviation in the Pentagon. In June 2015, LtCol Murphy reported to MACG-38 where he served as the Assistant Operations Officer and Operations Officer. LtCol Murphy reported to MACG-18 in January 2017 before assuming command of MASS-2 in June 2017.