I wonder where all the medal requirements are stored.
The renown for each ship type is in the \sea\shiptype\ship.cfg file.
I made a small mod for me and basically doubled renown for most ships.
Also I made some adjustments, as now destroyer values are tripled (only a little less than a old type light cruiser). If any skipper really got renown, it was Dealey
Fleet Carriers are more worth than an old battleship and CVEs as much as a heavy cruiser, while "new" type freighters are always a bit more worthy than "old" freighters.