Military symbols and abbreviations Old Post : Fort Sill, Oklahoma / U.S. Army, Artillery and Missile School Combat support schools : Ford Ord Drill Sergeant School Field officer course : Communication techniques / Air University. Air command and staff school Field officer course : Personnel / Air University. Air command and staff school Guide for preparation & maintenance of WD AGO Form 66 Instructor's handbook Guide for preparation & maintenance of the qualification record enlisted personnel (da ago form 20 - 1 april 1951) Field officer course : Intelligence-A Staff Function / Air University. Air command and staff school. Vol. 7: Intelligence Staff Division Field officer course : Organization / Air University. Air command and staff school. Vol. 1 Field officer course : Production and Dissemination of Intelligence / Air University. Air command and staff school. Vol. 7: Intelligence Staff Division Field officer course : Training for operationel readiness / Air University. Air command and staff school. Vol. 5: Operations Staff division