in this topic we help ppl who are stuck on a part. im halo combat evolved when you try to resucue the captian theres two holding chambres in the only door you can acces after you clear the room of the alians (the sword guy and others). just walk around the halls till you find one(me and my friend found the one room where the captian is by accident so it may be hard to find). acces the pannel an look at the cells the captian will be alive(if your in the right room) in one kinda in a ball shape sitting there. hope this helped if you where stuck there:)