Provided you can check logs and see that player with certain name has used some type of scripts/hacks, searching for EnableDie in logs should give you something to bust him. Short story: With friend on server, only 3 players in total. I spawned to kamenka and started making my way north, friend was ambushed near myshkino and less than a minute later I was shot roughly one click SE of pavlovo (player count at 3 all the time). Unless there's some magic transport available I don't know about, we have teleporting scripter/hacker here.