What is your weapons layout? mine is 2 rare XI phased polaron beam array fore and aft. 1 XII very rare polaron dual beam bank fore. 1 XII very rare quatuim torpedo fore. 1 XII very rare polaron turret aft. 1 XI very rare tricolbolt torpedo aft. On a mirror star Curiser.
I run a heavy escort carrier, U.S.S. Yorktown and all weapons are Ultra Rare/Advance Fleet MK XII: Fore- Two Antiproton dual heavy cannons, one Antiproton beam bank and one quantum torpedo launcher. Aft- Two Antiproton beam arrays and one quantum torpedo launcher.
On my Siege Destroyer I take 2 Dual Heavy Cannons, 1 Dual Cannon (I found a XII purple with [acc]x3, which is why I'm using it over a DHC) and 1 Quantum Torpedo fore, and 3 Turrets aft. All disruptor, to synergise with the Javelin.
On my Recon Sci, I take 2 Photon Torpedoes and 1 Dual Beam Bank fore, and 3 Turrets aft, designed for front-arc dps.