To add ships to Kenway's Fleet, you must board them and choose the Send to Kenway's Fleet option in Naval Combat. They cannot be leveled up. A ships statistics are determined by its type and what part of the world it was found in (see the ship levels and location section below). Note that your fleet's sails grow darker as you complete more missions, eventually becoming completely black.
And nothing works. I see that some people have earned the "destroyer" trophy recently, but that could mean either they got he plans from kenway's fleet time ago, or their connection works. I don't know if anyone here is having the same issue as me. Without those plans, the jackdaw can't be fully upgraded, and the platinum is unobtainable.
Problem is still going on till today. 6th September some Ubisoft support staff said this: -black-flag-the-ubisoft-server-is-not-available-at-this-time-kenways-fleet-and-multiplayer-post-here/423?page=22&lang=en-US
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