A beautiful Caribbean vacation with a few quirks

Since AC4 was my first game of this genre and I really can take only Skyrim for comparison, the benchmark is naturally very high. I approached the game with a minimum of expectations. What immediately stands out positively, is the beautiful graphics. She is very detail and captures the spirit of the region a well. I want to emphasize here also again the unique intense lake. It's just mind-boggling implemented as the high waves of the rough sea against the ship's side clap, the crew begins a shanty singing and pass whirlwinds in the background and Lightning flashes. Also I find the story very well staged and the characters do not remain pale. On the contrary, they are very diverse and show their own will. All the more impressive is the when you consider that all is well researched, since large parts of the story are something like this to find at least in existing legends. The story is never boring and has many twists. In addition, the side quests, where you have to save Assassinene, very exciting and a good balance to the main issues and the normal Assassin orders.
Oh yes, the Assassin contracts - which are not bad, but unfortunately for my taste a bit too little. Likewise, I could unfortunately most never read the entire "back story", because I could not scroll down in the window. Nevertheless, I find that these jobs at once the reason enter also quietly to sneak anywhere.
What I did not like so much to AC 4, for example, are always the same processes in addition to the main mission. It is I think understood that it latest by 20 chests of gold, that you always abound gets, because you had the small shippers to 20 islets, will eventually get bored. Here I would have liked more challenging, such as demanding guarding! So it goes with me to Animusfragmenten.
What I also as a pampered Skyrim - would have liked player, more side quests and more space to would definitely explore. Now you probably think the one or the other: "Wait a minute, AC 4 is still an open world game with a ream own map." That's true, but I would also look just to be able to look at the houses, for example, and not as "heavy-handed" would have accrued in the form of, for example, vertical walls. Similarly I lack a little interactivity, such as speaking with ordinary people on the street, but here I think you have to keep up in mind that AC 4 is not a role-playing game.
Also I was still disturbed in a few places the bad camera position, which turns a seemingly simple task purely a Herculean challenge. This was vorallendingen mind that you have only limited view of its surroundings.
The last point, however, disturbs me most is that you back in the world can not return after completing the main story and can experience more adventures at sea (if it is a possibility, I would ask for clarification). I mean, the game is played not only for the main story, just to be special also because of the feeling in the Caribbean. Who plays then please again the story to be on the stand as before the end precisely this ?!