Please read my other posts. I agreed with you about following a lawful order. However, if credible evidence exists that leads a service member to believe that the order is not valid, then the service member has an obligation to speak up. That is what this court proceding is for. She (and others) believe they have credible evidence showing that the order to deploy is not valid, by proxy of the fact that the person giving the order is not valid. As such, the Cpt has a duty and right to question the order. If done so with credible evidence and in good faith, the the Cpt is not insubordinate. However, if the courts rules against her, then she had her day in court, and should deploy.
I'm not denying her right to file the suit, though I question her choice of attorneys. But if she refuses to follow orders while waiting for this case of her's to work its way through the court then she deserves what's coming to her. Her restraining order was tossed. If she doesn't report as ordered then she's liable for the court martial. If she truly feels that the order is invalid then she should either resign or accept what the army decides to do to her.