Really Kith? I would have expected Concentration to move to Assassination. Concentration, extra damage when you take your time for a shot, should also stack onto OSOK, since it works with that. And isn't the overall theme of Assassination to use precise strikes to kill enemies? Now, Scope does have a slight synergy with the Assassination tree, but it's very limited, such a short extra range, and even then only in front of you. I think Scope fits more in Subtlety, because of it's ability to peer over walls and obstacles. Without it, Shadow Step is useless unless you stand in the middle of a very clear field. Even with Scope now, I'm sure everyone has the memory of accidently running head first into a slasher and becoming a blood splatter on the ground. But we digress again. I still think the HMG is just fine as a weapon. Any buff would seriously overpower the weapon when it's put into the hands of a class that can take advantage of it.