AC:BH ended the way it did because Kristen Bell did not want to play the character anymore so they had to write her out or cliffhanger should she want to come back.
I was actually talking about Ezio's ending, and the way Sequence 8 railroads you from one awkward fight with a handful of guards to another. Then, Sequence 9 begins, and we're in Spain... for some reason... that'll you'll only understand if you read up on Cesare Borgia on wikipedia.
''Snake from Metal Gear 2 owns everybody. Because he used an owl. To make a guard think it was night time. In the middle of the day. That's just hardcore''