This mod is making every aspect of the game very realistic which is good. Fifa 20 does not have the greek superleauge at all. It has 4 greek teams that are in the Rest of the world Category. So I have heard from fifa modders, that creating a new leauge will make the game crash, BUT; replacing a leauge with another leauge will not. so for example. it does have the romanian leauge, however, I would like to replace the romanian leauge with the greek superleauge, so basically replace all the players, names, stadiums, real faces, if not real faces then 2d faces. Because there are 4 greek teams already in the game. and there are 14 romanian teams in the romanian superleauge, it would need to just replace the 10 romanian teams with the rest 10 greek teams. I do have the project file of the mod that I am using so you can make it to not crash if you need to edit the project file. Please get back to me as soo as you can for more info. Thank you for your time.