Prior to his arrival to Fort Stewart, Major General Quintas most recently served as the Deputy Chief of Staff, G-3/5/7, United States Army Forces Command.  
Major General Quintas’ previous command assignments include:  Delta and Headquarters  and Headquarters Companies, 4th Battalion, 64th Armor, 1991-1995; Task Force 2-70 Armor, 2003-2006 for Operation Iraqi Freedom I and III; 16th Cavalry Regiment, 2008-2010; Chief of Armor, U.S. Army Maneuver Center of Excellence, 2013-2014, and Deputy Commanding General (Support), 1st Armored Division, 2014-2015.
His staff and special assignments include:  Instructor, Department of Mathematical Sciences, United States Military Academy 1995-1997; Test Officer, Test and Experimentation Command, 1998-1999; Operations Officer, 1st Battalion, 8th Cavalry and 1st Brigade, 1st Cavalry Division, 1999-2001; Aide-de-Camp to the Chief of Staff of the Army, 2001-2002; Deputy for Current Operations, CJTF-180, 2003 for Operation Enduring Freedom; Executive Officer to the Commanding General, United States Army Accessions Command, 2007-2008; Chief of Dominant Maneuver Division, Office of the Deputy Chief of Staff, G-8, 2010-2011; Chief of Staff, 3rd Infantry Division (Mechanized) and CJTF-3, Regional Command South, Operation Enduring Freedom, 2011-2013; and Director, Concept Development and Learning, Army Capabilities Integration Center, United States Army Training and Doctrine Command, 2015-2016. 
Born in Connecticut, Major General Quintas was commissioned as an armor officer following graduation from the United States Military Academy in 1986.  In his civilian studies, he holds a Master’s Degree in Applied Mathematics from Rensselaer Polytechnic Institute.  He also holds a Master’s Degree of Military Arts and Sciences from the Command and General Staff College and a Master’s Degree in National Security and Strategic Studies from the Naval War College.