Getting killed by spooky underneath this tunnel

You need to find the hole that allow the Spooky to kill somebody underneath this tunnel, in the tunnel that start behind B on Hue city, and finish behind C. I was on C, right behind the crate on the screenshot (http://ift.tt/2sfs3Pw) and i can't see any wall crack, or windows, so there's something wrong with the map.



Getting killed by spooky underneath this tunnel