i dont understand why people are so worked up that its the same engie.
its a completely different stroy with completely different maps and somewhat different guns.

half life and counter strike ran the same engine

grand theft auto and l.a. Noire and this new max payne are running the same engie. why does it have to be a different game within tha same franchise.

"i want assassins creed" with a different engine, story and everything else." then you want a different game.