Ok, there seems to be a hole in the train tunnel that heads into Boomer territory. This is one that has VH locked doors at each end. In the middle of the tunnel, there's a side room that LOOKS like you can get into it. However, I keep just falling through the floor attempting to get in there. I don't die, I just reappear at the north end of the tunnel. Anyone else having this problem or is my cache corrupt?

I remember seeing this somewhere else too. Maybe under the general issues catagory.

Same thing happened to me. I managed to get in the room after several attempts. The only thing remotely interesting in there is a construction helmet, so you aren't missing anything important.

Yah I hit that bug too, very unexpected. you can actually stick your head into the wall near the stairs to see where you are falling down. i think someone posted a vid on youtube also