Fusiliers G43 moving accuracy is at 0.8 if Im not mistaken, compared to 0.9 on all other G43s
All G43s have 0.8 moving accuracy, but what makes them even better is that they (all) get a 0.5 moving cooldown bonus too which means they have ~90-99% moving DPS. The higher the range the higher the relative moving DPS because the cooldown bonus cancels out most of the longer duration far range cooldown stats.
Panzerfusiliers do have their own G43 version though, as well as Grens and PGrens each having their own version. The Pfussie one is the weakest because it deals less damage per shot (14). The PGren one is the best with 16 damage and the highest accuracy and better cooldowns since last patch.
On the subject of Panzerfusiliers themselves, I think they are quite balanced right now as they bring plenty of advantages to the table (long range snare, vision, durability, good DPS and great moving DPS, versatility) but also have plenty of disadvantages (costly, the weapon upgrade is good but not fantastic, no self heal, no sandbags, no flame grenade, significant early game disadvantage, etc.). They are very strong in Grand Offensive, but that's more of a problem of synergy with the excellent Tiger I, which would hopefully be solved with some adjustments to heavy tanks. I like that the G43s have high moving accuracy, it gives them something special that separates them from rifles and assault rifles.