at the start of bm_c3a1a the ceiling caves in, and you run ahead and meet a guard. If you go back in the room that collapsed there are several pieces of debris (long items, such as I-beams or duct work) which look like they can be walked on, but I can walk right through them like they’re not there. One of them looks like a ramp back up to the walkway from the lower road level, and it’s kind of an immersion killer when you can’t use it that way.
