Muller was a Marine Officer and served his 6 year tour as required of single tour, active duty Marine officer. It would be very hard, if not impossible, for a one tour officer to rise above the rank of Captain.
He did however earn the title of “ex-Marine” which is an insult to Marine veterans.
Thank you very much,I was in overseas twice serving under various Commanding officers with the US army.
I was curious about his background under the USMC.Maybe Vietnam is still affecting his judgement in a lot of ways.