To simplify my awful sentence. Trying to start MP or ZM without having them installed mark them installed on Steam. Trying request a integrity check on steam does not work, since it has not been installed at all. And uninstalling it does not work. Only solution is to fully restart steam and hope that it updates the state and recognizes that ZM or MP is not install. If that does not work you are forced to either move the download and delete install folder and restart Steam or just unistall Bo2
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