@ivank - I can't convert ships yet but I hope to learn. If anyone else would like to they are welcome to.
Added a couple of "stingers" to the gun tubs on the bridge.
Damage model testing, using one of the Naval Academy missions. Naval Academy is an excellent mode to test new ships. All changes to the 3d model and skins appear without having to reload the game - you only need to start the mission over again. Also, because not many units need to be generated the missions take a few seconds to load up - very convenient.