Load and pop<br />
Load Save go to capaign Press ( B ) will the unlock Achivements<br />
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This will only work if the game has not been updated. if you update the game you will need to delete your cache.<br />
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to do this from the dashboard go to system, then memory, then press Y on your save device and delete the cache.<br />
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prior to nxe you must press Y on the device then press X X LB RB X X<br />
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~COMA