I know it's been about half a year since release without updates, but here's a relatively massive update to make up for it.

Changelog:

• New base opposite to the current other base, larger but more open.
  
• First base given bugfixes & more buildings.
  
• Massive underground roadway added, 2 player tunnels & 1 car tunnel connected to it.
  
• Skybox given a bit more detail.
  
• Bit more variation on the ground (trenches/hills more apparent).
  
• More rocks along the ground.
  
• General improvements to all buildings.

Hopefully this is a good enough update for such a long while without an update. I made most of these changes to help a community out with making it more compatible to the gamemode, but I removed all of that & updated it here. If you want me to make a specialised version of the map for your server, add me as a friend & contact me there.