"Wow", is there anything more pathetic than the Brotherhood? Baby killing rapists? No, that's going to far, serial killers perhaps. Oh wait, they are serial killers lol. I guess it was wishful thinking, hoping for a group of cool, ancient Ninja-like, badass assassins in Skyrim, who have some semblance of a code, who don't kill innocent people and certainly don't get involved in petty work, like murdering a miner in Dawnstar, just to settle a local fued, or killing a hapless beggar in Ivarstead, which is surely work more to suited to a hired bandit, or any fool who can weald a sword.
Sadly the Bethesda version of an assissin is nothing more than a murderer. Probably made so to cater to the apparent "urges" people have that they apparently need to get out in games, which is... quite disturbing realy.
On the other hand, maybe we're given the oppurtunity to kill in cold blood so that we can create an evil character and act out a role that is in no way an extension of our true selves. That I can understand, but its hard for some people to do; you see your favourite character in a show or movie get hurt, and you flinch in pain, sympathically, the same way some people yawn after they see or hear someone else yawn.
So it realy just depends on the kind of gamer, as to weather the Brotherhood missions can be played at all.