Everything is good. i find and help marshall out of his cell. He start giving directions. Then when we are to enter a big battle he just stands there. Its the beginning of the battle with some sort of spaceship in the end. Checked how its suppossed to be on youtube. No matter what i try marshall will not go out in the open and Even if i kill everything there he stays inside saying this way repeatedly. Have installed all three disks. Any help for a possible solution is highly appriciated.