I haven't played the map since the map test cup but I thought I'd look at the aesthetics and clipping and point out some nitpicky stuff I found (screenshots taken from b31):
This corner at the right hand side of spawn could do with some diagonal clipping
The clipping ramps found here on the dark wood should probably be longer (e.g. a 1/2 incline rather than a 1/1) because the player's camera still jumps up and down when walking over them and it should really be a lot smoother.
The shadows on these look wrong (probably too low res) and some of these (like this one near the big yellow pipes) are solid, when arguably all should be non-solid. Currently it's inconsistent and I think making all solid would be bad since that would include the ones on the spawns.
This one next to the point is also solid, meaning that players jumping after using the flank routes can hit their heads and not go anywhere. It also allows players to stand on top and hide in the corner which may or may not be desired.
The top of the right vertical pipe is a lot darker than the bottom
The low light map resolution used here allows light to leak into spawn under the right shutter
The red clipping across the top of this door should be lowered to the height of the door
This tap appears to be too close to the ground to be useful
The white dots found underneath the lamps do not move and look pretty weird once you notice it. Also a lot of the lights appear a little too dark such that it's not obvious they are doing anything and these are examples of those.
The triangular face on this staircase is too dark and the corners around this area are possibly a little too dark too (e.g. top right)
The ground displacement covers part of this bottom step
The thin white faces found here and on the opposite side might be too dark at the top
This light is not quite in the middle
What appears to be a decal between the pipes and the window looks a bit too much like a lighting issue
This could use some diagonal clipping
These are almost spaced evenly but not quite, and they have weird dark bits at the top
You can see a tiny bit of sky at the very centre of this image
This decal is a bit off-centre
Grass grows through here
The red valve thing looks like it should be a bit lower down
The textures don't quite line up just right of the corner
When I first saw the lighting at the right side of blue spawn I thought it was too high contrast but i'm no longer sure
This shadow looks ugly
This shadow also looks ugly
I remember enjoying the map a lot when I played it and visually it looks great with no major clipping issues. I don't know if increasing the light map resolution would cause other problems but I personally believe it would be a good idea.