I love this map. I havn't experienced the white meshes in the post above.
We did have an issue yesterday with Volter getting stuck inside the rocks here:
We couldn't hit him so he wouldn't die, eventually after killing the spawning zeds for a couple of minutes he somehow got out. It was very strange, it looked like he walked straight into it too, he turned towards the wall walked forward turned around and was stuck.
Anyway, fantastic map, one of my favourites, love the small circular design and the helipad is fun to stand on and rain hell down the stairs.
Great job