I'm just a Half-Life mapper. Despite the age of the old HL engine, I still enjoy trying to push the limits when creating maps for it.
As long as I can work out all the glitches, not a whole lot will change in this room. Zombies do spawn in on a delay, you did hear a zombie dog barking…....
This is a video of one of the sections in scumlines that is close to the map boss.