The only things factually disputed are two events - in the Bronze Star incdent one or more witnesses thought there was small arms fire from the shofe, and the first Purple Heart incident on the skiff two fellows said the anti-Kerry officer wasn't there, though if that was the incident Kerry was injured (supposedly) on is unclear.
Everything else, IIRC, is not disputed with any contrary testimony.
Well, there's the whole "Christmas in Cambodia" tale . . .