It's a novel but very 'classic' idea (but there's nothing particularly wrong with that). It was rather cramped (any more than 4 players would be pushing it). The differential shading was all over the place in the corridors, and the lack of maneuvering room in said corridors (coupled with the fact that the central arena would be a deathtrap) wasn't a boon. Survival on this map was difficult concerning the lack of room. The water tunnel was a little pointless. The big blue wall was a bit of an eyesore.

But apart from all of that, it's competently made and a good effort. Nice one.