She really can't do any harm to him like this, with the entire situation playing out between their avatars, but the sudden move still catches him off guard and it takes a split second for him to remember that, which causes him to emit a short, strangled yelp.

He glosses right over that like it didn't even happen though, putting on a more serious face now and growling wordlessly. He's nettled by what he perceives as an implication that his rank puts him as some kind of messenger, some trained cur to be sent howling back to its master on command.

"Oh, I don't doubt that you'll give it a valiant try. Just as I doubt very much that you will succeed in any capacity. You Autobots haven't even the slightest notion of what is in motion here, you're fumbling around completely in the dark. And you honestly think that you can take Megatron on...?" He laughs, mocking, incredulous. "Without your Prime you stand little hope against him. You won't even get the chance to give him cause to lift a single finger, because I'll destroy you all myself before you even get close."