Okay so it was just last night that I caught Madminer2243 prop blocking one of the tunnels with an invisable prop, when I confronted him about changing the texture and adding a keypad on both sides he changed to a Black Market Dealer and tried to kill me, I called an admin and he then admitted that he was trying to own that entire area claiming it to be for his gang yet he was the only one there and didn't own all the doors to all the houses.
Here's the screenshot of him prop blockin the tunnel as a civillian: