After the disappointment of Assassin's Creed III, I found myself feeling slightly cynical about Assassin's Creed IV: Black Flag. It was a combination of things. Pirates. Really? A full Assassin's sequel... really? But the more I see, the more I watch, the more I get the feeling that Ubisoft is really just throwing everything it has at Assassin's Creed IV: Black Flag, and it might just work.
It clicked for me behind closed doors at E3. Until then I'd just seen the 'sizzle': the bluster of the trailers, the CG, the stuff I had zero interest in. When I actually got the chance to watch someone play Assassin's Creed IV, to see how the world integrated, how all the disparate systems working together, then I got a real idea of what it might like to play this game. To play as a pirate without it feeling like some weird shoe-horned gimmick.
It's very possible that the above trailer might elicit similar feelings for you. It's a seven minute walkthrough that focuses on stealth but, more importantly, it feels like the game being played in the wild. It's still a very precisely staged developer walkthrough, but it still provides us with half an idea of what it feels like to play Assassin's Creed IV: Black Flag.