There is a Morris column in Severograd (78.06/29.55 on https://dayz.ginfo.gg/) that when facing it, removes the distant terrain. It's like it has a kind of black hole aura around it. I don't know if its possible to exploit this to ones advantage, but lets say hypothetically that it only effects terrain, yet players are still shown, then it would be easy to see the exact locations of players, even if they are in buildings and hidden behind objects.
Here is a clip of the glitch in action.