It's been so long since Knock Out even had to acknowledge there was a chain of command, addressing Starscream as Commander might as well be like flexing a rusty joint. Knock Out actually pulls a face, not quite a sneer, and grinds out, "Commander Starscream -- right."

He doesn't quite lower his arm, though he does relax somewhat -- he's still eyeing Starscream suspiciously, wondering what the full story is. With a haughty huff, he decides to begin with the most pressing question. "Why were you shooting at me?"