I made a modification but it does not get loaded. The screenshot below shows the implementation. I've also made it's type 'Mod' and have als a user.script.txt file with one line:

mod "my_mod.pack";
The text file is saved in unicode.
the file my_mod.pack is saved in the root, alongside patch6.pack and so on...

The game starts just fine but the amount of troops remain 160.
I've also tried to make its type a "Movie" but that doesn't change anything.