I like this mod a lot and early and mid game had never been more fun but there are some issues late game from my point of view.

Late game the catholic factions simply do not go to war with each other, instead they focus all of their efforts on Islamic and orthodox factions who actually fight each other, this leads to the Catholics literally conquering everything you have not conquered by turn 150, I am not kidding, Aragon owns all of Egypt, Castille the rest of North Africa and the Teutonic order has conquered Siberia and the Caucasus, basically all major Muslim factions have been eradicated.

What is worse, if you are not Catholic you will be waging war with the entire catholic world, I am in turn 150 with the byzantine empire on hard difficulty, i have all of Anatolia,the Levant and Balkans and i am at war with every single catholic faction apart from the HRE and The Papal States, and since this mod increases aggression, the ai is even more consistent in sending troops from the other end of the world to fight you; you thought the sasanid vassals in vanilla where ridiculous? Oh boy get ready for some even more bonkers roaming armies!

I have defeated my 3rd danish invasion stack in less than 5 turns, if I look to the Adriatic there is a complete traffic jam of Catholic stacks, I am curently counting 3 full Aragonese stacks, 1 Genoese stack, 4 Castilian Stacks and that's just en route to Greece, this is without counting my neighbours, Hungary and Croatia and the Teutonic order in the Caucasus who are all just throwing stacks at me like it's some medieval Operation Barbarossa. I feel like I am dealing with realm divide in Shogun 2 but at an even more ridiculous level. I have checked every Catholic faction, none of them is at war with it's neighbour, they are either at war with Muslims or with me and the Muslims are non existent. Now I am not loosing or anything, it is just annoying and immersion breaking because all diplomacy has been thrown of the window and it's a tedious grind of tower defence.

Now yes I know people will say "just git gud, I have 5000 hrs+ and play only on legendary difficulty" and I have to admit I wasn't necessarily tryharding but it is definitely the first campaign where I experienced such a situation.

In conclusion great mod but heed my warning and try to finish the campaign quickly until this hopefully gets adressed.