the map has too much going on for me to describe it..
all i can say is, there's 2 buildings across from each other,
-one you climb up a ladder and you run along the wood planks (or use stairs to get to the same place)
--there's also a basement that runs under this building throughout most of the level--
-the other building across the way you climb up a large ladder onto a platform, then onto a smaller ladder and
you can run along a metal platform. you can also go out onto the awnings of that building
https://www.youtube.com/watch?v=Yf81cn-Gwws