Started playing a bit last night. Never having finished the one with the native American, or black flag, or even played Unity I'm sort of lost, the continuity is gone for me, I guess I'll have to read up/ Watch youtube cutscenes.
gameplay wise thus far it's too scripted, the "tutorial/ intro" missions didn't "feel" assassins creed like, it felt more like uncharted, and for some reason it annoyed me.
But having now reached London, it gets better.