Changelog:
+ Reworked last and second. Last is in front of a greenhouse inside the corresponding team's base, and second is inside of a snowy wooden shack. The map is overall bigger and more interesting.
+ Changed cover on mid.
+ Added decoration to the buildings at mid.
I want to thank everybody who left feedback on version a3, because I didn't thank them at all when I first received their feedback. But after I took a break from working on the map, I was able to clearly see what needed to change, and I was able to bring myself to rework major areas of the map.