AFAIK, conquered provinces should go to your country as a general rule with some expeptions:
When you invade from an allied (not puppet) territory the allied gets the land
When you "liberate" an allied (maybe also puppet) province they should get it
Unfortunately, I find more confusing happenings:
playing as UK or US, I was getting the German annexed provinces in France, including Paris, aftem my D-Day.
playing as Germany and attacking Bulgarian owned Pristina from my puppet Serbia Italy (my allied) got it even if they weren't fighting from Albania. A few days later, Greece (another of my puppets) got the province west of Istanbul after I conquered it attacking both from Serbian Nis and the Greek province in the west.
I'm a bit confused.
I'm not going to complain about the game design on these topics, I'm just asking myself and to the forum if there is a chance to mod it.
When you invade from an allied (not puppet) territory the allied gets the land
When you "liberate" an allied (maybe also puppet) province they should get it
Unfortunately, I find more confusing happenings:
playing as UK or US, I was getting the German annexed provinces in France, including Paris, aftem my D-Day.
playing as Germany and attacking Bulgarian owned Pristina from my puppet Serbia Italy (my allied) got it even if they weren't fighting from Albania. A few days later, Greece (another of my puppets) got the province west of Istanbul after I conquered it attacking both from Serbian Nis and the Greek province in the west.
I'm a bit confused.
I'm not going to complain about the game design on these topics, I'm just asking myself and to the forum if there is a chance to mod it.