Modern Warfare II uses the same PC anti-cheat path as current Call of Duty. A hardware ban stored against that PC can block MW2 even after the login changes.

Players use a second account on the same computer as the practical test. If that account is refused as well, the penalty is sitting on the hardware ID.

The MW2 spoofer changes the hardware profile the game reads, so the banned HWID is not what the client reports.

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