It has become pretty common in online matches of any rank that players leave little holes in palisades or buildings given elevation issues.
I propose an easy fix in which all buildings have a dim dot in every corner. If the building is connected to another building or to a natural barrier (trees, etc) the dot becomes blue, if not the dot remains red / uncolored.
I think this is an easy way to address this common issue with minimal changes. Let me know what you think