Honestly will need more info for that to consider whether it's 'viable' or not. Is it a 'mercenary' group that eventually became assimilated into the Wood Wailers? Is it just 'unofficial work'? From what I recall, the Wood Wailers are restricted to the Shroud alone, and will not leave under any circumstances, as the priority is the Elementals, and the city of Gridania itself. They don't really have a specific branch, and as far as I know, act as the militia. They specifically wield the lance and the lance alone, and I have not seen a -single- Wood Wailer that doesn't use it as their weapon of choice.
Other groups have done something similar with the Sultansworn and the Red Wings. Lore should be respected when it comes to playing law enforcement and dealing with criminal rp, in all aspects if possible. And as far as I know, I'm not seeing much evidence to say that it is viable, but that could also be that I don 't have enough information, or enough information is given by SE. From what little information there is, it might be better off having origins with the Twin Adder.
Other groups have done something similar with the Sultansworn and the Red Wings. Lore should be respected when it comes to playing law enforcement and dealing with criminal rp, in all aspects if possible. And as far as I know, I'm not seeing much evidence to say that it is viable, but that could also be that I don 't have enough information, or enough information is given by SE. From what little information there is, it might be better off having origins with the Twin Adder.