The DOD has no record of Al Hubbard having ever being in Vietnam.
And he was a Sgt, NOT a Captain
And there is no record of a combat injury
Check out VVAW and Anti-Imprialist and go to their guy in Europe. He is the one you see leading a lot of demonstrations in Europe. His name is Darnell Summers and he spent his Vietnam Tour in Long Binh Jail. We was part of this Black Panthers group. He always likes to sign his name SP4 Darnell Summers USArmy 1966 to 1970. He really hates it when you point out he only made SP4 in four years when Elvis Prestly made E5 in only two years. If you got time to waste some time contacting this guy, try it out, it is a lot of fun.