So from those numbers it seems Corvettes are best against Bomber, Scout, LRM, Seige. Nearly as good against Basic assault, Normal DPS against HC/fighters and bad against Capitals/titans.
Armor being verylight would mean flac hard counters them, everything else deals moderate damage except Bombers or Capitals which deal least dmg Vs Corvettes.
With all that in mind it seems they're theoretically best suited as anti Bomber, with a secondary of Anti Basic Assault/LRM, when not used as harass units of course.
Last question, what are the actual weapon types on corvettes? Beam/phase missile e.t.c.? Or is the weapon type implicit in the damage type? I.E. Same as Vas HC?