Ok, couple of things I noticed.
Somehow this map has enormous performance issues when loading certain parts of the map, or by standing in very specific spots. My frame rate tanks from 60 fps (at which I have it capped) to 7 fps for a second before it goes back up again on almost half of the map, and I'm certain it's not my computer (if I uncap the frame rate I can easily get 250 fps +). A couple of those spots include: in front of cp B on stage one, on the bridge in front of BLU's 1st spawn on stage one, random spots around cp B on stage 2, around the final cp in stage 2.
Secondly, I noticed
this in the 3D skybox behind BLU's spawn. Somehow the mountain in the background is being told to render in front of the smoke resulting in some pretty weird rendering errors. Notice it's only the mountain, not the skycards that represent the trees, even though they are on the same plane.
And indeed, the refrigerators don't go back up to their initial before-the-drop state.
Love the music building up when the timer hits 30 seconds, but I'm missing quite a few sounds when the train is actually moving from control point to control point. It travels in near silence.
I still don't get why this map was cut. It being too complicated is not an excuse, there must be something going on behind the scenes that neither we nor McVee's team know of. Every TF2 player is missing out on something awesome here.