So basically you can go outside of the map in richland.
.First you have to go to this part of the map https://steamcommunity.com/sharedfiles/filedetails/?id=1715857287 and you can put a bin and a brick there then jump up, or you can just super sawed off (and jetpack).
To fix it you could just put an invisible barrier there or a kill zone behind the map.
Here is two screenshots of it,
On top of the fence: https://steamcommunity.com/sharedfiles/filedetails/?id=1715857360
Behind the fence: https://steamcommunity.com/sharedfiles/filedetails/?id=1715857431
You can just go behind the fence and almost no one will know how to get you without c4 and inced grenade so this needs to be fixed @meharryp