Honestly I noticed more than a lot of problems. To many to list.
So i'll give advice.
Watch out for shortcuts (if you map is open then remember, make sure you cannot jump from one part of the map to another). One of the high parts of the map, I jumped and skipped about 2 areas and landed in a hole which had a water texture, so no pain, and 5 minutes of extra time.
Also, a lot of the map was very dark, and alot of platforms were hard to find. That is not a bug, it just pisses me off
Dont use flat walls as ladders! If it doesnt look like a ladder, how the fuck should I know its a ladder >.< (Also, dont use things like barbed wire as ladder, its just too hard to see.)
Most of the map was extreme pink, and some of it was pitch black. Maybe you should find a central point of maybe.... plain!

(My eyes hurt

)