Its probably slightly overperforming
but honestly its the only thing keeping USF afloat atm.
Using Jacksons + M8 combo feels (because feelings matter in a WW2 game) like playing Eldar in Dawn of War 3:
Your mainline infantry would win every single engagement because they had the longest range and greater speed than any counterpart. Losing models was very difficult because they had a shield that had to be broken before they would even start dropping models & you could always disengage and had the range advantage + panic nades as a bonus.
Naturally the fun factor when playing against that was through the roof