Scott Campbell entered the U.S. Air Force Academy in June 1991, and graduated with a commission as a 2d Lt in the U.S. Air Force on May 31, 1995. Lt Campbell next attended Joint Undergraduate Pilot Training at NAS Whiting Field, Florida, from October 1995 to July 1996, and then at Vance AFB, Oklahoma, from July 1996 to April 1997. He then attended the A-10 Thunderbolt II Initial Qualification Course with the 358th Fighter Squadron at Davis-Monthan AFB, Arizona, from July to November 1997, followed by service as Chief of Life Support, as an A-10 Instructor Pilot, and as Battalion Liaison Officer (Airborne) with the 75th Fighter Squadron at Pope AFB, North Carolina, from December 1997 to June 2000. Capt Campbell attended the A-10 Weapons Instructor Course with the U.S. Air Force Weapons School at Nellis AFB, Nevada, from July to December 2000, and then served as Chief of Weapons and Tactics, and as an A-10 Instructor Pilot with the 25th Fighter Squadron at Osan AB, South Korea, from January 2001 to January 2002. His next assignment was as Chief of Weapons and Tactics for the 23rd Fighter Group, as well as a Flight Commander and A-10 Instructor Pilot with the 74th Fighter Squadron at Pope AFB from February 2002 to February 2004. During this time, Capt Campbell deployed to the Middle East and led the first and second A-10 missions into Afghanistan, as well as multiple other combat missions into Afghanistan in support of Operation ANACONDA during March 2002. He also later deployed to the Middle East during this time in support of Operation Iraqi Freedom in April 2003. Maj Campbell next served as Assistant Director of Operations for Close Air Support and as an A-10 Flight and Academic Weapons Instructor with the 66th Weapons Squadron at Nellis AFB, Nevada, from March 2004 to February 2006, followed by service as Aide-de-Camp to the Commander, U.S. Air Force Warfare Center, and as an A-10 Instructor Pilot at the U.S. Air Force Warfare Center at Nellis AFB, Nevada, from March 2006 to February 2007. He served as Director of Operations and as an A-10 Flight and Academic Weapons Instructor with the 66th Weapons Squadron at Nellis AFB from March 2007 to June 2008, and then attended U.S. Army Command and General Staff College at Fort Leavenworth, Kansas, from July 2008 to June 2009. Lt Col Campbell next served as Director of Operations for the 355th Operations Support Squadron at Davis-Monthan AFB, Arizona, from July 2009 to March 2010, followed by service as Commander of the 358th Fighter Squadron at Davis-Monthan AFB from March 2010 to January 2012. He served as Deputy Commander for the 355th Operations Group at Davis-Monthan from January to July 2012, and then attended National War College at Fort Lesley J. McNair in Washington, D.C., from July 2012 to June 2013. Col Campbell next served as Commander of the 451st Expeditionary Operations Group at Kandahar Airfield, Afghanistan, from September 2013 to January 2014, followed by service as Commander of the 451st Expeditionary Group at Kandahar from January to August 2014. He served as Afghanistan Country Director with the Office of Undersecretary of Defense for Policy at the Pentagon from August 2014 to August 2016, and he then served as Commander of the 355th Fighter Wing at Davis-Monthan AFB, Arizona, from August 2016 to July 2018. Col Campbell's final assignments were as Vice Commandant of Cadets at the U.S. Air Force Academy from July 2018 to July 2019, and then as Assistant for Manpower and Operations at the U.S. Air Force Academy from July 2019 until his retirement from the Air Force on August 1, 2020. Col Campbell is a Command Pilot with over 3,400 hours flying time, mostly in the A-10A/C Thunderbolt II. After his retirement from the Air Force, Scott worked as Managing Director of Victory Strategies.

His 1st (of 3) Distinguished Flying Cross Citation reads:

For extraordinary achievement while participating in aerial flight as an A-10 Pilot, 74th Expeditionary Fighter Squadron, 332d Air Expeditionary Group, Ahmed Al Jaber Air Base, Kuwait, from 4 March 2002 to 5 March 2002. During this period, flying as MISTY 11 and CHERRY 07, Captain Campbell successfully led the first and second A-10 mission into Afghanistan in support of Operation ANACONDA. Launching from Operation SOUTHERN WATCH's main operating base, Captain Campbell led an 11-hour mission into hostile territory recovering at an austere classified location. On his first sortie, he sorted out confusing communications and de-conflicted multiple fighter and AC-130 aircraft in the target area. Skillfully delivering two marking rockets bracketing the enemy position, he maneuvered MISTY 12 to deliver two 500-pound bombs with deadly accuracy. Preventing a blue-on-blue fratricide incident he directed a B-52 to change his attack direction to protect a friendly position only 1 kilometer north. During his second mission, Captain Campbell again took charge of airspace de-confliction. Directed to an enemy stronghold, he patiently used multiple target plots, ground controller talk-ons, and marking rockets to pinpoint the enemy's position. With approaching nightfall, he swiftly maneuvered his flight to deliver six 500-pound bombs and 500 30-millimeter high explosive incendiary rounds killing a confirmed 200 to 300 enemy personnel. During this action, he also cleared two F-18's to strike with additional bombs against the same target. The flight's outstanding tactical skill and mature airmanship inflicted heavy enemy losses and completely devastated an enemy counter attack against friendly forces. Captain Campbell saved countless Coalition lives and advanced the United States goals in the war on global terrorism. The professional competence, aerial skill, and devotion to duty displayed by Captain Campbell reflect great credit upon himself and the United States Air Force.