I was totally theory crafting with friends saying how Musketeer would be either Ranger, Corsair, or Both.

The problem i was having with it not being on ARC is that ARC has the signature Ranger ability "Barrage". Barrage would be a base class skill for Ranger but then add on things like Eagle Eye Shot etc. I have no problem with RNG being on guns or bows, but you wont see me not complain if we get Slug Shot/Sidewinder like in XI :9