I use Pathfinders regularly, and imo they are fine at best. The only situation where they are OP is when I play vs someone who obviously doesnt know their weapon profile at all and stays as far away as possible from me.
The airborne paths can't hit a barn door if the enemy walks towards you for CQC, because the sniper rifles have an inverted profile: Maximum accuracy at maxrange, bad accuracy at short range. You can test that for yourself, I think even Wehr pio has a chance of winning if they just walk up.
The scoped carbine is bad at close range the normal carbine is not.
Pathfinder have quite good DPS close range and can defend in garrison until they stat dropping entities.
Actually their carbines should also change to have better DPS far and worse DPS close so that they have better synergy.