The secret of security shoulders.... cheats for Halo 3

The secret of security shoulders....

I finally unlocked the security shoulders after getting every achievment you can get offline (i have no live achievments). The last one I got was "Complete campaign on Legendary. I also have all the skulls, so figueing out how to actually get the shoulders is tricky. But it's definatly no getting 750 Gamscore points or 39/49 Achievments.

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