There is no air control for this map. People can't surf properly and can't finish the map because of it.
Yeah, apparently for some reason "sv_airaccelerate" is set to 12 on this map, instead of 100. This'll have to be fixed before the map is playable.
This should be fixed, there was a problem with cKSurf not reading maps with capital "Surf" in the front. So renamed the map to have a lowercase "surf".