Finally got my master with this weapon and have to say, the BEST weapon I've ever used in any game. It works like the BearStalker *The bow* and will freeze anyone in spot if they drop below 2 health. This leads up to a number of humiliating kills with any combination you can think of (the boomerang being my favourite).
For those wondering if it is OP, I laugh. I havn't seen anyone complain about the BearStalker, but get messages about this being so overpowering it ruins the game. The gun CANNOT KILL, simple as, the only weapon in the game that can't I point out , but does the same damage as most snipers, with the downside being you have to charge up your shots.
I only point this out because I would love to see this beauty used more.
My setup being:
Hope I have opened your eyes, have fun