not "ungodly" great - ratiowise, the fighter inferno is still the best - while the battleship inferno is rather inefficient ( comparing the damage increase with the energy increase ) - but something in the 20.000 - 26.000 ( so somewhere around cruiser inferno ) along with the energy usage of a common front gun + a limited arc would be good - besides, one can still just unmount the frontgun and install a lvl8 fighter gun anyway.