I may be late, I dunno I'm just coming back to the forums from skyrim hybernation and a perfect way to assassinate many target either personal or contracted is to sneak close by the target where you can't be seen go wolf and slaughter them, there's no way anyone can connect the deaths to you. This is really cool for Dark Brotherhood roleplay.

i love doing that turning werewolf and killing all that oppose me

I only use beastform against vampires. maybe i've been watching too much underworld.