In this demo, I set a man in front the wall with 0 health and 0 firstaidkit to ensure I can one shot one kill. And I set a group behind the wall faceing to him. I am on the top of the hill. After I killed the target it makes the group aware. However, if I deliberately shoot the wall for a round of mag, nothing changed. This x-ray vision make stealth impossible.

In the second demo, just walk with your leader to see if he assign a virtual target to you. Why he can find the dead body? It is ridiculous. {F22211} {F22212}