tomitian
Chieftain
It is? Then it's great. Maybe some merge?
War is the best way to "negotiate" land. Let's say it's around 1870 and Germany wants the Alsace-Lorraine tiles from France. Paris is too much of a stronghold so it would simply invade those tiles, garrison and then modify the culture percentage towards German. Like workers have an option to build an improvement, there should be some way to spread more German culture. Of course there should be some other implications, but it's an idea.
War is the best way to "negotiate" land. Let's say it's around 1870 and Germany wants the Alsace-Lorraine tiles from France. Paris is too much of a stronghold so it would simply invade those tiles, garrison and then modify the culture percentage towards German. Like workers have an option to build an improvement, there should be some way to spread more German culture. Of course there should be some other implications, but it's an idea.
Culture in Civ4 can be spread in individual tiles using spy missions if I am not mistaken. Not sure if there has been any spy changes made in RFC though, regardless it is a very small amount requiring lots of missions to make a dent in a contested square.
Perhaps it is possible to adjust the amount and then use spies for the targeted culture war, provided RFC spies have that mission available to them.