Here is the comparison, so I’m guessing it would be the spy line unless we want him to say something else:
Original
Trooper: What’s your operating number?
C-3P0: “Speaking gibberish”
Trooper: That’s not even a language!
Ascendant V2
Trooper: Who are you?!
C-3P0: I am a highly-trained Resistance spy!
Trooper: Then why are you… what?!