I just played the map, I also think this may be your best one yet! It does a nice job combining action with an eerie, tense atmosphere.
The environmental story telling with those mannequins is on point, and you really have knack for creating creepy, surreal areas in DN3D. (I assume these are also inspired by Silent hill?).
Great usage of strong lightning/shadows as well.
Gameplay also shines here, it makes the best use of the expander I've seen in a while. It seems some combat scenario's here were specifically created to make the Expander as effective as possible.
Some fights get really spicy, the trap inside the frozen basement in particular is pretty nasty. I died twice but nothing striked me as unfair or frustrating. So good job on that as well.
I even got to use the tripmines to great effect:
My only (minor) complaint was the button hunt inside the factory, I feel like the signposting could have been better here. Luckily I didn't get lost for too long.
I still need to check out the other version. Overall, great job!