Here, I've created a database with some National Team can be played when you beginning a new career.
There are :
1. Download then extract the files
2. Replace the "German" Folder in android/data/com.sigames.fmm2017/files/installed/database/.. With The Files
3. Then Open The Games,
4. Start your new career with German League in Slot 1, and another League in Slot 2,3,4.
1. Please Activate The Large Database On
2. Don't forget to backup your file first
Credit to @jaymarvels PreGameEditor
What's New in Version 1.0.1
Added 4 New Playable National Team :