may be they are "superior"....but only if your character is so "high level" that he can handle the negative modifier for rapid fire AND hit something
the lawgiver is of course state of the art ! but in game it's unlogical. the only "advantage" of the heavy weapons judge prestige class is the fact, he gets an assault rifle (in my game as a replacement for the scattergun). but why should anyone take this class if the main "gimmick" is only half as good as the lawgiver ?
why are all these weapons locked in their depots ? in the kazan gambit trilogy MC1 is under extrem emergency (pt III) and at a warlike status. in the missions for the playergroup is everytime a little list with special equipment authorized for that mission. there are widowmakers, a hornet hand gun and so on....the scenario is for 5-6th level judges !!!!!!!! why should anyone bother to carry these weapons if they can hit badly with the high rapid fire modifier....and if he hits...the damage is equal or less (!) than their lawgiver ?
i played it with 4 judges (all level 6)...and the best "shooter" took the hornet minigun...even on the rapid fire 6 mode, he hits maximum 4 times (if he has a lucky dice hand this day)...for 2d6 damage. with the same AP of a standard lawgiver round !
the wall gun has only 2 points more on AP but a lower range than the lawgiver....wow....same for the widowmaker...with only a quarter of the range of a SE bullet from your lawgiver (widowmaker description: "...issued to heavy weapon squads as well as street judges in emergency situations")...so why issue this weapon ? give them more ammo clips for their lawgiver and they have the better solution at lesser weight!
sorry....maybe in theory they are more powerful....but in the daily game...they just suck and are unlogical.