I don't think I'll be able to join, but I have some tips to get to VERY high levels. In the first few waves try to save up as much as possible and mostly use round shot, I would not suggest using only the type that auto aims to the ships because it doesn't deal that much damage and only goes for the first ship. When you get to the high enough level where you get cold shot always try and get the middle of the sea frozen so no ships can get through to the beaches. You should start to get some weak famed rams around wave 20 or so. When you get to level 20 cannon you can get the best type called firestorm which sets many ships around them on fire. The rounds I usually kept in my inventory were: round shot, cold shot, powder keg, and firestorm. I used this tragedy and got to level 60 and got the revenant ram
We had some great gunners with a lot of experience.
Also when one ship has the last bit of gold only shoot at it because the other ships don't matter. Hoped this helped and good luck mate