The new chapter of AC is a trully good one. You get to be Edward, a pirate of the golden pirate era in the Caribbean. Plus, you are an assassin, in a more loose term though. The main hunt is for gold, the Observatory - a place which holds an artifact like the Apple of Eden and of course fame.
You get a huge map full of small islands ready to be explored, a ship, a fighting system that is lighter and more fun to play, great GFX and sound and thr chance to drive away of the main plot to live as a mighty pirate. It's good from every point of view.
Story 7/10 Gameplay 9/10 Technical 9/10 Overall 9/10