The a8 is part of the map itself.
I made insomniaplusboredom_a8 two years ago for the April Fools 2015 map map game map day play map. And then a bit after that I uploaded it to the workshop, saying I would upload it here. I guess I finally got around to that.
Features? Just take a look at the list I made for this years ago.
I'll get screenshots up in a bit, but I'm actually uploading this from school, so it'll be a bit.