User blog comment:Master Sima Yi/Assassinews 10-07-'13 — Assassin's Creed IV: Black Flag pirate gameplay naval exploration/@comment-3046679-20130719142151

Not sure how fresh this one is, but have a look anyway. Certainly is better than that Bay-esque trailer we've seen two days ago.

https://www.youtube.com/watch?v=zfFbmmsBfbU#at=19