How about instead of a Mining ship for the Coalition, a "Mining" ship, as in a Mine Layer.
A large frigate-y thing that has many "mine-dropper" Hardpoints,
and you get a special new 'capital ship' turret, called 'mine-dropper'
and its like cap-ship missiles, no ammo consumption,
a rather large amount of energy per shot though...
You'd have a whole new anti-ordinance strategy...
get infront of your enemies and drop a bazillion mines right in their face!