To my eternal shame I am stuck on this game. I think I am on the Replica level - I have been rushing through a burning building trying to escape. I am now standing on the remains of a walkway, only able to go through a door into a room with a few burning gas pipes (with more exploding as I've gone past them). I get to the next room, a big open space with an Office type building in the middle, walk forward and get a scriped depth, i.e. a gas explosion in front, the character automatically spins around and sees a gas explosion behind, and then the walkway gives way and I fall to the ground and get buried alive (and then die).
I don't seem to have any other options to avoid this death. I've tried Slow-Mo, I've tried looking for a gas valve, I've tried running as fast as possible - but the result is the same everytime!
Can anyone help?
EDIT: Have attached a picture of where I am stuck. The only way to go is left - but if I do the walkway collapses, I fall, something heavy falls on top of me and I end up in the main menu!