I think it is a two way street with the mil guys (I am one). I have been a new hire twice at UAL. Once as an ex-mil guy in 95, once as a u-hire at lCAL in 2013. Both new hire classes had a reasonable number of ex-mil guys and gals.
There was a huge difference in attitudes between the groups. The first was glad to have a job at UAL and hoped it worked out with their reserve jobs.
The 2013 class was vastly different. They came armed with legaleze from USERRA (sorry don't know how to spell it). Many came just to get their name on the list, and go back on active duty, or to get their B fund contributions rolling, or re-rolling, if they were re-called from furlough and going back on mil-leave.
Is that their right? Yes. Is it "right"? Not really. They are gaming a system meant to help them, and to aid them in serving their country.
Are they within their rights? Yes. But they are creating an adversarial relationship between reservists, and the company.
I heard from an old friend at Alaska that the actions of a lot of locally based reservist's "materially affected" hiring practices at Alaska. Too many drill periods over Christmas, New Year, etc.