I was inspired by an old custom halo3 map that had a 45degree fortress. It had the name Bunker or something. I decided to take the idea and bring it to a BTB scale with my own unique base design. OFC this was built with asymmetrical objectives in mind, but for now it supports slayer strongholds and even ctf.
The map layout was particularly hard to balance so I would personally consider this an "experimental" map.