This mod exaggerates all of the facial animations in cutscenes. I was meaning to do more work with the mod to make the animation edits more consistent (the game stores the data in a bunch of different formats and I wasn't able to find good ways of editing all of them the same way) and I think there are some cutscenes which might be overly broken (I don't think the mod causes any crashes but I'm not 100% certain).
If there any major issues with the mod, then let me know.
Eventually, I think it would be fun making a similar mod for DMC5 or RE2, but those games store animation data a bit differently so it would involve quite a bit of work.
While the mod is called "400% face animations" the actual value animations are multiplied by varies depending on the character and type of animation (since different data formats results in different kinds of changes). If I recall, Jill has the lowest multiplier, most characters are 400%, and then an occasional character has a very high multiplier (I think those are Brad, Marvin, and Mikhail).
This mod can be downloaded directly via Fluffy Manager: https://www.patreon.com/posts/36745578 (look for "400% Face Animations" in the list of downloadable mods)