Yeah, if there’s an appropriate sounding “come on,” that would work. Leads into his, “We just landed, okay?”
I don’t have the original cut of the movie at the office, but Finn does say “come on” during the last briefing that was cut since he refuted the 1 in a million shot.
EDIT: The only issue is there is music in the scene and it overlaps with the line. The tone and delivery is good for this idea though. Dang.