[propbeanie]

There is a upc file for the Submarines also, in the Data / Submarine / SubName folder, and that's what you match in the CareerStart for the Submarine. You'll notice an S18 and S42. There's an "ID=" line in that, and that's what goes on that "IDLinkUserPlayerUnitType=" line. Some of those lines have the ;comment of "; enumeration of ID(s) that point to submarine upc file". That's what that means. The Flotilla.upc has similar requirements of "exactly matching" parts of the CareerStart file, and things in the PatrolObjectives.cfg must match things in flotilla.upc... one little "I" not dotted, or "T" not crossed, and you get a CTD to tell you that you made a mistake... There really should be an error trap there, but there isn't... You'll see "DeBug Mode" listed in some areas of the game's internals, but not in others... ??