If he where diagnosed with Aspergers or some other form of autism, he could possibly get some legal protection from that kind of harassment. But then again i dont know for sure nor do i know the inner workings of the military.
Unfortunately, while in the military, you can't sue them per contractual agreement. Somebody else can sue on your behalf, however. You can also file grievances, but going up against some Brass may get yourself in a sling.
I have some similarities to Asperger's syndrome even though i am diagnosed PDD-NOS (Not otherwise Specified). With Autism you can have problems with social skills (I have two books at home for Autistic people to do well in social envoronments). If he has some type of Autism, then such social problems combined with military life could cause some issues to arise.
That is precisely what is going on with him. While he is sociable, he lacks the same kind of common sense or sense of humor that most every one else would adapt to. But he is incredibly intelligent and very knowledgeable. He is respectful and meticulous, but he lacks social graces. He also seems largely incapable of thinking outside of the box. He is good at remembering the rules and regulations, but can't seem to grasp why such rules and regulations were instituted in the first place. So he tends to see things in black and white as a result. He therefore can never be in a position of leadership, at least not militarily.
But like I said, he is content to stay at his current rank and to continue doing what he does. It suits him because he is a creature of habit, which no doubt his condition has something to do with it. I say they should let him stay in.
“I know where I am and who I am. I'm on the brink of disillusionment, on the eve of bitter sweet. I'm perpetually one step away from either collapse or rebirth. I am exactly where I need to be. Either way I go towards rebirth, for a total collapse often brings a rebirth." -Andrew Jaramillo