1965 recruiting poster highlights the 12-soldier Green Beret Special Forces ODA
The 12-man ODA from 1963-1970 had a commander (O-3), an XO (Lieutenant), an Operations Sergeant (E-8), a Heavy Weapons Leader (E-7), an Intelligence Sergeant (E-7), a Light Weapons Leader (E-7), a Medical Specialist (E-7), and Radio Operator Supervisor (E-7), an Assistant Medical Specialist (E-6) and Demolitions Sergeant (E-6), and a Chief Radio Operator (E-5) and Combat Demolition Specialist (E-5).