The only thing I have in mind about "Assassin's Greed" (that's how I call it) is the horrible way to close the game, as I saw it on a video on one gaming site (don't remember which one anymore, though).
personally, the whole technological aspect on Assassin's Creed annoyed the hell out of me. It wouldve been double the game for me if they'd let out the parts where you're in the present undergoing high-tech scientific experimenting. They should've just added more content and let all that crap out.