I know its complicated but please try to explain, Rohan is with a 1000 faction strenght even though i ve been doing countless missions for them, winning every battle against isengard and dunland, but it wont go up

I've seen someone say that the faction strenght is equal to the amount of parties the faction has but that doesnt make sense because Rohan has a bunch of 50 man patrols around and the lords arent even losing that many battles either

It's really annoying because it really feels like doing Guildmaster quests barely affect faction strenght at all