Well, this is what I got.
It is pretty confusing with a lot of arrows but it is pretty simple. The arrows with 2 points are normal attacks and the one point arrows are one way. The dashedlines are bombardments and the solid lines are normal attackes. The brown requtangles between ships are boarding planks and count as spaces.
There is a logic to my attack routes.
Since ships can mostly just bombard things I had mostly bombardments. Also, the cannons on ships generaly only fire perpendicular to the ship and are predominently in the middle section I only had bombardments form the middle reigions on ships.The larger ships in gerneral can bombard more because they would have more cannons. The thin three reigion ships are bombard ships so they can bombard further and from the front of the ship.
The center is a fortress with towers in each corner. The towers can bombard cirtain ships. THe brown rectangles in the fort are gates and count as territories.
(The red arrows are attacking out form the towers.)
Well here it is, (The image quality is bad sorry).
- Click image to enlarge.

Sorry it is so big.