Hi, did you use JSMGE? In my case it did not work that way. So i put all the files in the folders manually. The shark will show up in the museum as an american ship. In the mission editor you will find the shark under Roster/American/MS Haifisch. The sharks will appear in the missions you create. Donīt set the wave to high. There is a dolphin mod which works in the same way. The dolphins show up in the mission editor under enviromental/LR Dolphins. Same here with the waves, if to high they will act unreallistic. Nice to watch. I use them with the U boat mission patch. Works fine.