Aww. Flying pig was so nice though. I guess since people say they will refuse flying pig I'll withdraw my support for it. I still think it was deliciously random.
Fool, the catapult was actually in a good spot. You had it somewhat protected if our "t" gets crossed. It made a good Broadside armament. This was why I argued for Sail/Oars too. In battle, you get your rowers out and increase your speed and maneuverability at the cost of crew endurance. Outside you got the sails. Of course I think Grek is doing it differently, and reigns is more of what I saw as "oars". Either way, we can take the sails down and go to props in battle. This means we don't have to worry about harming our rigging. Even if we did have to worry about it, I don't think it would have been that much risk to the sails since the catapult is probably built more like a Mangonel style, which means a low trajectory, as opposed to a Onager with a higher arc.
You are 100% correct on the Ballista though. It's worthless to have it on the foredeck and behind a mast, unless it was for "crew discipline"
I assume the rearward circles with xs in them are the wenches for the boats? You will need to run a chimney through the decks for the propeller furnace though. You also lost the chimney going through the main deck somehow.
(Edit: You know, if we can, we should put a catapult in front and behind the center mast, so we have 2 machines for a broadside, and then a bow and stern chaser ballista, potentially giving us a decent throw weight. I don't think we'd be able to crew them all in combat, but it does give us a larger tactical flexibility in naval combat.)