ChokoCabra Hi, I also had the sprint issue as well as the jump not working upon installing Plutonium just a few minutes ago. I too am on MnK via steam and it works fine in vanilla BO2. I read on a different forum that capping your fps to 120 fixes it, and sure enough that fixed both problems for me. Give it a try and hopefully it resolves it for you as well. Cheers.
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nomz75
@nomz75