Senior leader retirements, assignments Published April 3, 2006 Air Combat Command Public Affairs LANGLEY AIR FORCE BASE, Va. (ACCNS) -- The following are senior officers in Air Combat Command who are scheduled to retire. - Col. Leonard T. Coleman, 4th Mission Support Group commander, Seymour Johnson AFB, N.C. - Col. Jeffrey P. Harrell, 27th Fighter Wing vice commander, Cannon AFB, N.M. - Col. Scott J. Mason, 20th Mission Support Group commander, Shaw AFB, S.C. The following are senior officers in Air Combat Command who have assignments. - Col. Russell K. Walden, Air Force Headquarters Air Dominance Division chief, Pentagon, Washington D.C., will become 4th Mission Support Group commander, Seymour Johnson AFB, N.C. -Col. Valentino Bagnani III, 56th Operations Group deputy commander, Luke AFB, Ariz., will become 27th Fighter Wing vice commander, Cannon AFB, N.M. - Col. Francis V. Xavier, ACC C2ISR Operations Division chief, Langley AFB, Va., will become 20th Mission Support Group commander, Shaw AFB, S.C. - Col. Michael R. Scott, 99th Air Base Wing vice commander, Nellis AFB, Nev., will become AFROTC Detachment 207 commander, Saint Louis University, Saint Louis, Mo. - Col. Maria J. Dowling, 51st Mission Support Group commander, Osan Air Base, Korea, will become 99th Air Base Wing vice commander, Nellis AFB, Nev. - Col. Jeffrey G. Lofgren, 388th Operations Group commander, Hill AFB, Utah, will become 8th Fighter Wing commander, Kunsan Air Base, Korea. - Col. Patrick W. Christopherson, Air War College student, Maxwell AFB, Ala., 388th Operations Group commander, Hill AFB, Utah. - Col. Gregory M. Perkinson, 1st Civil Engineer Squadron commander, Langley AFB, Va., will become 386th Expeditionary Mission Support Group commander, Ali Al Salem Air Base, Kuwait. - Col. Howard D. Belote, 3rd Air Support Operations Group commander, Fort Hood, Texas, will become Combating Weapons of Mass Destruction Division chief, Pentagon, Washington D.C. - Col. Donald D. Tharp, National War College student, Fort McNair, Washington D.C., will become 3rd Air Support Operations Group commander, Fort Hood, Texas. - Lt. Col. Joseph A. Swillum, 4th Maintenance Group deputy commander, Seymour Johnson AFB, N.C., will become 8th Maintenance Group commander, Kunsan Air Base, Korea. - Col. Louis G. Bochain, 1st Air Support Operations Group commander, Fort Lewis, Wash., will become ACC Joint Air Ground Combat Office director, Langley AFB, Va. - Col. Eric J. Schnitzer, Air Force Doctrine Center Development director, Maxwell AFB, Ala., will become 1st Air Support Operations Group commander, Fort Lewis, Wash. - Col. Gary L. Crowder, 505th Command and Control Wing vice commander, Hurlburt Field, Fla., will become Combined Air Operations Center director of staff, Al Udeid Air Base, Qatar. - Col. Ronald C. Wiegand, Air War College student, Maxwell AFB, Ala., will become, 505th Command and Control Wing vice commander, Hurlburt Field, Fla. - Col. Arden B. Dahl, Joint Air Ground Operations Group commander, Nellis AFB, Nev., will become Antiterrorism and Homeland Defense assistant deputy director, Pentagon, Washington D.C. - Col. Thomas M. Webster Jr., Air Force Doctrine Center Doctrine Applications director, Maxwell AFB, Ala., will become Joint Air Ground Operations Group commander, Nellis AFB, Nev. - Col. George D. Kramlinger, 612th Air Operations Group commander, Davis-Monthan AFB Ariz., will become Air Force Command and Control, Intelligence, Surveillance and Reconnaissance Center chief, Hanscom AFB, Mass. - Col. John E. Marselus, AFELM Joint Exercise Division chief, Elmendorf AFB, Alaska, will become 612th Air Operations Group commander, Davis-Monthan AFB, Ariz.