Invisible person hack?

Not sure if this is the right place to post:

This was on babel, someone managed to break our tower repeatedly. You can see on the minimap no bullets were shooting at the tower, and there definitely wasn’t an opponent there digging it (hard to tell from the video, but this happened repeatedly and there was never an enemy around). I have seen this before but only a couple of times, the last time the admins managed to ban the person but you know how easy it is to ban evade :-\

Thoughts ? Anyone have any idea how to catch them next time?


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Iirc this is someone exploiting something and not being invisible