It doesn't seem like there is a mechanic to change cultures in the game yet and I think this would be a fantastic option to add as for people who are trying to roleplay a certain culture it can get a little rough needing to run back to the "homeland" in order to stock up on new troops. I don't know how hard it would be to add but I was thinking maybe it could be a governor option or something similar wherein you can opt to change the culture to whatever you want in return for a large but slowly decreasing security and/or loyalty penalty.
IE: Take over Mazahan Castle and switch it from Sturgian to Vlandian, so you select the option to "Assimilate into Culture" or something which gives you like a -10 Loyalty debuff while the villages work to transform over to Vlandian culture. As the transformation completes the debuff gets smaller and smaller until it finally disappears once the villages have been culturally assimilated, then you can start to recruit Vlandian troops from right outside your fief rather than having to make that trek across the Battanian wildlands back to Orcs Hall in order to get the troops you want.
If that is too much of a hassle maybe just make it so that cultures switch slowly whenever a particular culture captures a fief and allow the option to select your own culture when you create your own kingdom (something similar to what they have in the Prophesy of Pendor mod for Warband is what I am thinking here).
IE: Take over Mazahan Castle and switch it from Sturgian to Vlandian, so you select the option to "Assimilate into Culture" or something which gives you like a -10 Loyalty debuff while the villages work to transform over to Vlandian culture. As the transformation completes the debuff gets smaller and smaller until it finally disappears once the villages have been culturally assimilated, then you can start to recruit Vlandian troops from right outside your fief rather than having to make that trek across the Battanian wildlands back to Orcs Hall in order to get the troops you want.
If that is too much of a hassle maybe just make it so that cultures switch slowly whenever a particular culture captures a fief and allow the option to select your own culture when you create your own kingdom (something similar to what they have in the Prophesy of Pendor mod for Warband is what I am thinking here).
