This is a really great map. I have watched a YouTuber named Mr Dalek JD played this, and he was blown away when he sees the outside of the spawn room. So when I have played it, it was still beautiful despise of what graphics I was running on my laptop. And now I do have really good frame rates on that map (around 60fps on the lowest resolution, 30fps on native 720p). It performs very well as much on how beautiful the map looks. And I can tell there's some fallout references in it as well.
Although there's this one time when I had tried to jump out of the zombie grasp (with quick revive), I had been down and the zombie hit me one more time and it killed my character before the zombies were supposed to break away.
I've never said this before but among all the stuff about mapping, optimization is my favourite.