If he'd started being a jerk after having the blame dumped on him, I'd be more sympathetic. But he's an ass from the get go (in fact, he's such a jerk that his taking the fall seems to have no impact on him at all - it's not like he could become more of a jerk) and he's flat out disrespectful to his commanding officer (you) to a trully stunning degree. Sure, you go from his subordinate to his boss, and that's got to irk, but like I said, I'm pretty sure you don't get to talk to your superiors that way in any real military.

Maybe he gets better, but my impression so far is not good.