He certainly could try. When I was working for the VA I saw more than enough doctored up DD 214's (discharge papers) submitted to support receiving services, comepnsation/pension, etc. But after what happened to CBS and Rathergate, I believe the kerryoids will think twice before falsifying records and releasing them to the public. They would be too voluminous to fake a whole record and not slip up.
More likely he will simply brazen it out like he did last time, with the help of collaborators in the craven media. Or Hillary will torpedo him with a well-timed leak.
This is my guess :
" Hillary will torpedo him with a well-timed leak. "