The only one I am fairly sure of is his Vietnam tour when he was S2, 1st Bn, 1st Marine Division. That information was obtained by calling his office. Apparently his chief of staff was in the USMC with him.
A letter to them would be interesting, they could not lie, and it would look bad if they did not respond. I don't think he had much active duty during Vietnam. It would be interesting to note his assignments in any "active" units outside of training during his 37 year career. I would also like to see him state his actual date of awards for his two Purple Hearts. I would also like to see a list of people in comparable assignments of his that DIDN'T get a Bronze Star. At his rank and position, the Bronze Star was a kind of "I've been there" medal.
WRT that time, Murtha says, "I was in the field everyday." Does that compute?