I was looking at some assets in Pixel Gun 3D Assets and i found a texture called Menu_Colapsed_City_Background.tex
Usually the files like Example_Background.tex are loading screens background for maps but the picture doesn't appear in the game and it looks very strange. It's seems to be the half of Destroyed Megalopolis. Why Rilisoft decided to put this loading screen in the game?
EDIT : I've an hypothesis, this image has the same angle as the lobby in the 11.1.1. It's maybe a background used in the lobby for avoid to render the whole world in 3D.