Well first off, to get the elevator to move, everyone in that area has to be dead. Then you have to press the use key on the button on the side of the elevator cage to go.
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=[SE]= MSgt. Parchy
Screamin' Eagles
Company First Sgt.
what: There is a complete walkthrough at IGN! You have to an insider to see it! BUT, since I am an insider, I can send you a copy of the walkthrough! Just post your e-mail and i'll send it to you!