A little about the map:
Under the map there are 5 stations that are connected by 1 branch of tunnels. the tunnels contain rocks, non-loot piles of garbage, and bots.
In the creation of the map, my good friend Gruber provided me with his RT. I suggest you also look at his product.
Prefab Count: ~38к
Pack of Roadside Monuments + Gas Station + Warehouse
+ 2 more underground stations