Now Megatron was just needlessly twisting the knife around, as far as Starscream's opinion on the matter goes, and the crushing blow to his ego struck by those words reads clearly on his face.

"B-but that wouldn't- what good would that-That is an unfair assessment!" He whines. It's obvious that he desperately wants to argue, to defend himself and his decisions, but he's far too terrified to adequately do so, struck dumb by Megatron's biting criticism. He could try and justify why he chose to hand the harvester over instead of using it, but it would only serve to incriminate him further.

Ultimately he has no retort. He just glances down at Orion briefly and then back at Megatron, scowling miserably. Cybertronians may possess lengthy life cycles, and Starscream may be far from young, but right now he feels like a rookie scout back in basic training... a sentiment which only serves to fuel the resentment in his spark right now.