@ linerkiller - If you can't find the mod, you can always replace stock ship entries in the campaign with modded ones manually; you can do this by either replacing the stock class name with a new one- for example, change "Class=NKLS" to "Class=M35B" if you wanted to replace a C2 entry with one for Iambecomelife's Empire Freighter. You could also genericize the entry altogether by putting a semicolon in front of the whole line so that any ship od that class might spawn, but I don't recommend doing that too often (some entries are better off with certain ships appearing for certain entries - for example, maybe you don't want an LST appearing in the middle of an otherwise civilian convoy).
I'm sure BBW will cover all this in his summary for you though.