At first the player appeared to be "rubber banding" but then I noticed that it was always behind me. after witnessing the hacker teleport short distances right in front of my eyes, he disappeared again and reappeared within a minute right in front of me. then while he was standing in the middle of the street a Mosin Nagant appeared on his back (keep in mind he was standing in the street and there was no loot on the ground or dead bodies)
attached is a screenshot of the server list immediately after the hacker killed me.