This is how Soundwave reports to Starscream goes in Darkness Rising Part 1.
[Soundwave walks up behind Starscream]
Starscream: Soundwave, what is it?
Soundwave: (with Arcee's voice) Like Equestria's a party. We're alone wherever we travel on this dirt, Cliff.
Starscream: Ah, the one called Arcee. Why trap just one Autobot when we can still surprise them all.
Vehicon: [from behind him] Uh, Commander Starscream, sir.
Starscream: What is it?
Vehicon: You might wanna see this. [projects a map of Canterlot]
[The map shows an Autobot life signal come online]
Starscream: There is only one Autobot that can mask his signal. Track down Major Malfunction, and terminate him.
Vehicon: Yes sir.
[The Vehicon walks off]
Soundwave: (with unknown voice) You know Malfunction is a foe to be reckoned with.
[Starscream is clearly annoyed by this]
Starscream: Malfunction, like all Autobots, will be destroyed.
[As if to confirm Soundwave's warning, multiple signals that are all Malfunction appear on the screen]
Soundwave: (with unknown voice) The old decoy trick. Malfunction's strongest point is his ability to hack into databases.
[Starscream yells in rage]