If he is/was a soldier and on US soil making these claims, I do believe the DoD will discuss his actions with him.
If he was a citizen dressing up as a soldier and making these claims on US soil, I do believe the FBI will discuss his actions with him. (His claim would be "film acting" but IVAW better find him a lawyer).
I wonder of ASU prints graduation certificates in "doofus" language.
As for the rest we can only hope, but there is one FBI agent who has made it his mission to out fakes and if our friend is shown to be a poseur I will look up that agent and send him all the evidence found online and listed here personally.