Alright. The game can't do it without railroading. The stuff you mentioned with a non-Cathoilc Il-Khanate joining a Crusade can't happen in game. The civil war stuff would need either railroaded events or a huge overhaul of game mechanics to happen. The Hun example another guy gave can't really happen either unless we give unlanded adventures huge mega-stacks.
No it wouldn't. Civil wars happen ALL THE TIME in the game. Civil War happens, alliance not honored. BOOM! It's represented. (As for Adventurers, I'm worried about just that... the magical mega stacks with armies larger than the areas that spawned them... But that's a digression)
And your little cycle thing of me saying the history doesn't matter and then asking for history isn't true. Could you please stop making stuff up? Thanks.
"China didn't affect the Crusades or the Crusader Kings. You don't need China to have the Silk Road, which is the only thing got to do with China that affected Europe. They already added Mongolia which did affect Europe."
That is your full post. Arguing about China not being needed because "it's the only thing to do with China that affected Europe." I rebutted it to point out that yes, China and events there did have an effect on the Crusades and the Crusader Kings (You did not at all say THE GAME in that statement. You said the nouns). There is no misquoting here. THAT was what I responded to.
Your response to me, quoted in entirety, then is "And it didn't. The Mongols from Mongolia affected them in a way that can't be modelled in the game. And we're talking about a DLC for CK2 here. "
I made nothing up. That is exactly what was said, you can go back to your OP and see it, I didn't even change spelling (or if I did, it was a typo). And shows you now arguing game stuff as a response to history.
I was always only talking about the actual history, the game CAN be twisted to represent things like the above. It already does in other places. The appearence of Crusades. Hordes. Etc. the game can be changed a LOT if the Developers want. this isn't even close to the same game it was at release. Hell, it's had more changes that it is basically a brand new game entirely by this point.