User blog comment:Master Sima Yi/Assassinews 12-11-'11 — Assassin's Creed: Brotherhood launch trailer/@comment-201.69.177.1-20101112150800/@comment-3132468-20101112152014

Plus in AC2, it shows scenes not entirely visible to Ezio...like when he observes the Palazzo de la Setta or when accessing an Assassin Tomb...it's more for the player to see rather than Ezio sometimes