Well, I'm sure it's a concoction you'd be a bit wary to drink, but when it comes to mapping, the above mixture congeals to make something fabulous. The excellent recipe is evident in the first map of an 8 map pack. This map is so well constructed, I forgot to look at where I was. You'll notice the cleanliness which abides in this map.
Various pipes extend up through the floor, around the ceilings and off into unknown places.
One of the greatest attributes of this map is the numerous vantage points you can use to kill one another. Several times I was killed and never had a clue as to where the killing blow came from. On the other hand, I lost count of how many humdingers I laid on my opponents when they weren't looking. The point is, when a map is made so well, there's little to say. I have little to say.