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Demon ;)Master Chief Petty OfficerMaster Chief Petty Officer. Did you think that was his name?master chief petty officerhalo better then cod Master Cheif Petty Warrant Officer Master Chief Petty Officer master cheif petty officer TWATMaster Chief Petty Officer through all of the playable games until the end of Halo 3 in which he is promoted to Master Chief Petty Officer of the NavyMaster Chief *facepalm*Master Chief Petty Officer of the Navy.

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