I like the new crisis, good fun and very thematic. Just to highlight the payment text after finishing related quests tend to be bugged. If you negotiate using the negotiator the payment text lists the entire pay ammount including the prepayment. So if you got 500 prepayment and offer of 1500 for finishing, after finishing the quest the text will say “Here’s your 2000 gold” but you only get the right ammount of 1500.
Also the northern armies should have a specific crusade unit for flavour, like crusader knights or flagellants – maybe as part of a contract. This is a suggestion but the northern armies lack flavour and it isn’t that immersive.