(adsbygoogle = window.adsbygoogle || []).push({}); i dowloaded mw3 on filazilaa to my pse it done queued so i go to play it it kick me from muiltiman in the thing say game corrupted what do i do?

Hover over MW3 in multiman, press triangle and go to game settings. Make sure BD Mirror is enabled and Internal is aswell.
If that doesn't work you need a new MW3.