If you download my .mis file for HMS Tiger and follow the instructions it will tell you how to merge .mis files with the campaign_SCR file to ensure ships appear in game.
If you like VonDos' ships I've got a little mod which scripts them all into their historic routes in game:
http://www.mediafire.com/file/3gnzyn...ips%20v1.9.rar
It's based on GWX but if you use another mod or supermod let me know and I can create another version for you.