If you can get your hands on a Subspace Jumper, throw that into the mix for a delightful level of carnage.
I always fly with dual beam-banks in addition to my cannon load... So I pop in behind you, unleash a BO, followed by heavy cannons while the PD turret is running then I cut the torpedoes lose.
My friends have come up with several indecent names for this tactic, most of which would be infraction worthy.
