Folks and AM you will find this read interesting and it may clear up some things. The SPAF to which I and Johnston refer was actually a detached section of the 4th PLT assigned to Kontum AAF and they were assigned directly OPCON to FOB-2. Later they were reunited with their parent unit and billeted at the MACV quarters in Kontum.
http://www.specialoperations.com/MAC...CC/Default.htm