Fighters are completely overpowered in Naonite, Titanium and Iron regions, where they still appear during faction wars :-\. I once needed to come with no less than seven flak corvettes with four chainguns each to have a chance that once in a while two corvettes would focus a fighter and actually overcome its capacity to dodge.
Still waiting for Iron/Titanium hangars. For the moment I modified the equipment dock script to sell 50 more of whatever module when it's a TCS (turret slots increase) so I could field the flak without losing oodles of modules :P.