Need help on area 51 for x-box.
 

I just got to that part on the level "The final exit" with the unlimited black ops, that locked door leading to the bridge and I keep dying! Will someone help me.

This is a little late, but here:
http://www.gamefaqs.com/console/xbox/game/562074.html

Don't worry if it was created with the PS2 version, same game.