I went down the elevator shaft, turned off the power, climbed up to the top floor, into the vent, down through the collapsing pipe and found myself on the other side of the red door, the way forward blocked by a locked door with explosives right behind and a mighty wall of debris. So I'm stuck.
This is where I am precisely and what I've tried, but nothing seems to work to go past these barriers. (I apologize but Livestream seems to enjoy skipping up bits and pieces of the stream for some reason.)
Am I just looking in the wrong place? How do I proceed from here?