Support slot for Archer/Xbow

[Tee]

In my experience, xbowman always do bring support gear (unless they are bringing 3 repeaters + bolts for the team)
It's just that the xbow class is such a great all rounder that it can proficiently use 4 different items, and for low lvl chars without support clas (or for high lvls trying to solo a server) being able to equip 4 weapons allows the class to properly fill its jack of all trades role