Plutonium

I uninstalled a mod called "BO2 Reimagined" and so did my friend, and we played it for a bit. We didn't like the changes so we decided to uninstall it a bit later, but it didn't go so well. Now when we play zombies, he dies in 3 hits instead of 2 and for some reason I die in 4 hits. Is there any way I can fix this? I've tried some ideas of my own but to no avail.

So I uninstalled the mod and now zombies takes 4 hits to kill me... is there any way to fix that? I tried reinstalling plutonium and the game itself, and I even deleted the t6 storage folder and reinstalled that, too. I don't know what else I could possibly do.