DarkRogue would call it liquid crap on a stick, with the textures maybe it will look good, but it has been made by someone who totally missed to play the game.
The center is no good building area, will get owned by maras and adv. goons., there are no places to hide eggs, the ceilings are high as hell, jettards will just set the reactor up somewhere at those edges and no alien will get to it.
Its simple, humans love to have big rooms, high ceilings, long corridors --> ranged weapons.
Aliens love to have small curvy corridors, lots of places they can hide and rather complex tunnels/vents.
The idea is to make either a mix of those 2, or to make a map where no team is favored. And most important: dont make map-setups that just invite human camping, its the worst you can do.
Honestly, i would love to play this map in q3a, it looks just right for a DM, but not for tremulous.