ok, here are these screenshots explained:
the second and third are when I was exploring a factory-like building, it has patches of grass that interfere with the concrete.
the fourth shows that I can't place a furnace, later I tried dropping the furnace but it didn't work, even making the item dissapear.
the first shows a gas station, which I couldn't loot. I couldn't loot the factory type building either, so I don't see the point in having the buildings.
here are some bugs I couldn't take screenshots of:
1. I can't get water
2. spears dissapear when you throw them, and dont even go straight while they're in the air.
3. you have to hold down crouch to crouch, and to loot corpses you have to crouch so it was hard