justeve wrote Ghosts has 10 different TU's.
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If your using the same disc as for your retail it should be fine,if you got the TU and the files from your retail.

i am using the disk and title update from my retail & i have went into xm360 to unlock it but only computability pack 2 shows up the other computability pack doesn't show up + it says no matching title in the database also

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EDIT:

Fixed when unlocking the update i didn't realise the computability pack & computability pack 2 are in 2 different sections thanks for everyone that has helped