Nice map, but it can be better, if you rework it a bit.
1. There is a place on the street in the beginning where 1 lamppost is missed. But there is a clipbrush at this place, which is blocking your way.
2. The door in the sewer can be used from the other side of grating (you can enter it ignoring the presence grating).
3. Maybe will be good to add there some more weapons / monsters.
P. S. I liked that trick with hanging man

.
Edit:Oh, and I forgot to mention about:
4. Conclusion's scene duration time is excessive. It should be shorter for some seconds. You can use these timings, for example:
"credits" "70" (instead of 95)
"statskamera1" "70" (instead of 95)
"fade_to_white#1" "65" (instead of 90)
"conclusion_text_off" "65" (instead of 90)