
Well to me knowledge the only person canonically to leave the Empire was Cid, but he wasn't Military he was R&D effectively. I'm not saying you couldn't do it, just that it was my impression that they used crazy brainwashing techniques to keep all their troops loyal and in line.
Maybe your character suffered some kind of head trauma, or has amnesia? That kind of thing would work to rid him of the indoctrination.
Maybe your character suffered some kind of head trauma, or has amnesia? That kind of thing would work to rid him of the indoctrination.