I have just spend some time on it. There are a few notable things on the characters there:
-Most of them don't have pupils, or they have just slight part of left one visible (scout and medic).
-Only heavy and spy have clearly visible pupils. Spy is looking at medic, while heavy is staring slightly up, to the control point. Pyro has it's mask on as always.
-There's a commercial on the flip side of the control point. It has "Cracky pop" written on it, while showing an almost toothless boy with cataract (making the pupils almost invisible) drinking the presumed pop.
-instead of being koth styled, the games goal is which ever team captures the point first.
-No ambient sound is played, except for control point capture sounds.
-This map is so rarely found on the server search that tc_hydro is more commonly played then this!
Overall this is one crazy map