The dual nationality possibilities that are increased in this mod were made with the intent of allowing more players to play for weaker NTs while being somewhat realistic, that changes are:
First Nationality (Second Nationality):
Argentina: (Italy)
Australia: (England)
Belgium (Congo and Morocco)
Brazil: (Angola; Bolivia; Haiti; Germany; Italy; Japan; Lebanon; Mozambique; Netherlands; Poland; Portugal; Venezuela and Ukraine)
England: (Jamaica; India; Pakistan and Trinidad and Tobago)
France: (Algeria and Tunisia)
Germany: (Syria and Turkey)
Italy: (Albania; Austria; Croatia and Romania)
Netherlands: (Morocco and Suriname)
Spain: (Morocco, but only for Ceuta and Melilla)
Uruguay: (Italy)
USA: (China; Cuba; Dominican Republic; Germany; India; Ireland; Italy; Lebanon; Mexico; Norway; Philippines and Vietnam)
P.S. The way the game works it is impossible to replicate realistically how it works in real life, so if in RL a region has a good amount of dual citizens or foreigners, in the game, all players from the region will have 2 nationalities. So I made some editing so a few cities will have too many dual citizens while others will have fewer, but the overall number of dual citizens should be more realistic.
P.S.2 If there are any suggestions of regions that have many foreigners IRL but not many in the game, I'll be happy to add to the mod, especially if it makes the game more fun!
My Socials:



Discussion: More Players with Dual Nationalities
2 comments have been posted so far.
As for Italy, I can recommend this link from Wikipedia where it shows the most represented nations by region, so if you want to increase the other nationalities, you have a reference.
https://en.wikipedia.org/wiki/Immigration_to_Italy