Short, sweet, occasionally nasty (in a good way), and very enjoyable map that does a lot with very little. The fights/enemy setups do feel a bit heavy-handed, but I think it all works fine considering how short the map is. Besides, the encounter design creates a certain feeling of... powerlessness, which meshes well with the cold, mechanical base aesthetics. Excellent.
I downloaded Mark V and was able to replicate it a couple of times, but your guess is as good as mine what the problem is.