You can use the same shp file for the Tender.
The Navy Cross is all the higher you can go, so you are apparently scoring too many points... lol - there is no easy way, and it is highly doubtful if what would be edited would be of much help, since the change of one aspect affects others. With the patrol count, the computer counts from zero, and some one of the programmers forgot that small detail, and started counting from one, which the program then added one to, and started counting from 2 then... sigh...
A look-alike portion of RUIM is indeed in the mod. Noted in the ReadMe...