Hi all,
As Eddie mentioned we don't disclose these values. Idea is for users to try out and try to find out the impact by themselves.
From the support perspective, I'll answer you guys that there's in fact aNationality bonus that's activated when you've 6 players same Nationality (and no PT + BR or ES + CH + CL + MX + .. are not same nationality, it's not language bonus)
Bonus amount, we won't disclose, but let's pick the number Eddie provided 25 (not 25%)... Imagine something like:
Squad strength= Goal keeping + Defense + Mid + Attack + LineUpbonus + Nationality + Stadium + TC + ST + .......
Using random values, it will be something like: 100 + 400 + 450 + 300 + 20 + 25 + 10 + 50 + 5 + ........