Revolutionaries still wouldn't harm civilians. All they care about are political targets--- plus, they want the people on their side.
Pirates want to get credits cheaply, and all are (sorry to say) Cowards. They'll flee in front of an LPI patriot, leaving the transport behind.
Terrorists do whatever they need to to achieve their goal. They Create fear in the people, because they kill you for being at the wrong place at the wrong time.
Pirates only attack civilians. (Corporations/Freelancers)
Revolutionarists attack their Government (Police/Military/Supply convoys).
Terrorists do whatever they want.
If you want to destroy lawful fleets, you should join a revolutionarist movement, not get a Hacker Spyglass and camp Manhattan.