This is an indoor map.
Screenshots
Downstairs area of blue base:

Red base:

Weapon overview in red base:

Red base:

Red base battle area spawn:

Battle area:

Blue base battle area spawn:

Blue Base:

To get the full experience, you need to download the game variant as well as the Forge map itself.
Download!
The game variant is in slot 1, and the map itself is in slot 2.
I'd like to thank ragdoll for helping out with the spawns and re-enforcing some of the barriers :)