That is not a mega base as it is literally only a 2x3 (2 wide and 3 tall). It was not blocking. Second of all, I had it faded the entire time. Third, MULTIPLE staff said it is ok for me to build a checkpoint on the sidewalk like I did. It was not blocking it at all and the only thing impeding the traffic was the groups of bloods and crips fighting through it (same as when they were fighting in and right in front of the tunnel normally). Only way it is able to be blocked off would be if someone body blocked it which i would arrest them for (as i am a cop job). So yeah, It breaks no rules unless someone is body blocking the door.