The route should be pretty much identical to the original HL2DQ route. Exit the train, ABH down the platform, go through the turnstile. Keep left, and keep ABHing. Now follows the first annoying spot of the run.
It would seem if you go through the big room too quickly, the triggers will mess up and there will be 3 people blocking your way. There are 2 solutions to this problem, but I don’t know which one is faster.
We can either a) Slow down a bit during the ABH in the big room, to avoid messing up the triggers, or b) Keep the speed, but pick up an object in order to wallclimb up on top of the 3 people, and just walk past them on their heads.
I’m guessing a) will be a bit faster, but it would be really nice if someone could try both and see which is better.
Also, I say we keep do this map in 1 segment, as it’s really not that hard.