This page contains Gunmetal Codes for Xbox called "Joke mission briefing" and has been posted or updated on Feb 9, 2009 by Emma-Leigh69. Let us know what you think of this Code by thumbs voting.
Joke mission briefing
Play missions 1, 3, 6, 8, 9 or 14, then press L(2), R(2), click Left Analog-stick, Right Analog-stick at the armory screen before launch.
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