Hi,
I added the line in the file like this :
"
mod darthmod_shogun.pack;
campaign_unit_multiplier 2;
naval_fleet_multiplier 0.75;
mod Rotk_Music_mod.pack;
"
and put the Rotk_Music_mod.pack file in shogun2/data folder.
But the mod didn't work.
I had to activate it on the shogun 2 launcher, and it worked.
Maybe you should specify this on your first post.
Moreover, you should edit it to delete the warning about the new CA patch, because it is obsolete now (isn't it ?)
Anyway, I'm downloading your loading screen mod and, mixed with darthmod, I think I will get a new fabulous trip in medieval Japan.
Thank you very much for these excellent initiatives !