Bull. There are plenty of half-witted bleeding-heart men in the world too. She's an attorney for the U.S. military; she made a serious technical error which put our trrops at risk; if it cannot be shown that she made the error in reliance on information provided to her by another authorized party, she should be subjected to some disciplinary action. And the sniper should get his job back, unless he committed a serious security infraction SEPARATE from blowing the whistle on this dangerous mistake by the JAG.
But I've got another issue here. Who the heck is in command of these snipers (and I expect the sniper-commanders are all MEN), who allowed the snipers under his/their command to act on this mistaken order, and left it to one of his/their subordinates to "blow the whistle"? If the subordinate understood why the JAG decision was in error, the sniper commanders certainly should have known too, and should have responded quickly and decisively by citing the facts to the JAG, to whoever the JAG reports to, and to his subordinates, and ordered his subordinates to continue using the perfectly legal ammo until satisfactory explanation of the order was provided to said commander(s).