I’m a dedicated interceptor pilot in T3 ( atm i use a kyte, Hawk-M was just as good if not better for some things )
I personaly fit Plasma Arc / Flares / Camo / Suicide, altho the last one can actualy be replaced with an Orion module wich is actualy GOOD atm
For mods i usualy use everything that gives speed, except for shields ( i use + resist ) before you get a Kite or whatever has 3+ passive slots, by experience i’d say that Thermal resistance is a must as you’ll be seeing alot of minefields, pulsars , plasma webs and lasers
As weapon i too tended to go with Rapid Plasma but something after the patch changed things a bit and unless i’m fitting the projectile speed mod it doesn’t feel quite as right to use them, if i’m correct maybe before projectile speed was added to your own ship speed while now it isn’t ( but i might be very wrong about this), anyway, becouse i’m lazy i’m using rapid fire lasers and i’m having quite a good numbers of succes with them against fighters or other interceptors
Plasma Arc is a bit tricky to learn as it has very short range (about 300 or less) and works in 90-180 degrees cone, but it is quite good, if you want to take out key targets, you can go behind a lone enginnering frigate and unload rockets + main weapon + plasma arc and demolish it in less than 6 seconds, just try not to be the surrounded by like 10 ships
However be mindful that an interceptor has a limited combat ability, try not to engage first unless you know you can take care of your enemies, escape if you feel you’re not doing enought damage (happens alot when repairs are near), dedicate yourself to objectives becouse of your speed and stay safe when camo and/or flares are both on cooldown, a single missile can wreck you by half if not more
Also a quick tip on frigates, sometimes frigate pilots tend to have both mine field and pulsar as their “panic” buttons, so unless you approach a moving ship keep on their side and quickly fly away from their pulsar, wait 10 seconds a go back for your kill.