Damn, ninjaed by @zovice . :P
Certainly was the biggest surprise and most intriguing revelation from the show so far - also: Beyond (Two Souls); Assassin's Creed 3 (that naval battle was pretty awesome): and Star Wars 1313.
yep the best game in E3 so far, It will blow my freaking mind again if it's current gen because that looks like a PS4/Xbox 720 game.
It's slated for release on current-gen - PS3, X360 and of course PC...