all of the aircraft. MACOI, Military Assistance Command, Vietnam Office Of. Biographies Bios are in Alphabetical Order; Click Picture to Enlarge Barry Abrams Barry Abrams in Saigon, at left, with his good friend, Mikesch; then Barry in. redstone arsenal Relocation Buena-Vista Guide ×This is the official website of MARCOA Media, LLC, a Department of Defense Contractor and Civilian Enterprise Publisher. Unauthorized attempts to use this site or.