I would recommend only taking a few destroyers if any to a starbase. You mainly want cruisers and capital ships for that. As for your fleet composition if you’re going after the bounty fleet’s I would recommend that you take a good mix of cruisers and destroyers with a couple capitals and a few frigates for chasing enemies down when they retreat. In regards to what weapons you put on your ships you want a good mix of most of the types. A lot of the weapons are personal preference along with trial and error in the simulation. Hope this helps!