I have no experience using it in PVP but I do have the Mythoclast and I can tell you that not every shot is a crit like other fusion rifles. Also slight correction the upgrade gives you 54 shots not 56. Also regular pvp is supposed to ignore these things and treat everyone equal so shouldn't any adjustments have been done in that area and not effect Iron banner and PvE? Just food for thought, thanks for giving me something to think about.