Thought I just had for the cutter. I see it as a scout ship.
Perhaps one of its abilities could be seeing fleets docked in a port that do not have danger. The ability could allow 1 random ship to be see up to 10 at level 10, all random if more than 10 or in that port.
To upgrade this ability perhaps a cutter gains points every time it docks in a new port. The more you travel the more points and further you can upgrade.
Just a quick thought, havnt spent too much time on this concept yet.