Sorry for listing the link as private, stupid me.  I meant to have it as simply unlisted. Should work now.

Player is using aimbot and wall hack.  You can see at the end of the video, he draws down on a doorway.  A doorway with no one in it.  Seconds later, someone pops through the door.  No way he could have known they were there.

Happycamper_DOD

https://youtu.be/eSOghVk3Thk