Not a fan of mods myself. I have a hard time not considering them just random buffs some random individual came up with that simply replaces what sometimes appears to be the at least not well thought out and tested settings done by CA. Which is in fact entirely under their control to do something about.

M2 did see some mods I considered worth using.

I never saw anything for Shogun 2 I even considered and so far I can say the same for Rome 2.