The two times that I've got on to play, I was in my base running around Svetlojarsk and Olha when all of a sudden both my friend and I died at the exact same time. We didn't hear any gun shots at all. Then we respawn and when we finally get back to our base, I instantly die again, near Svetlojarsk. A couple minutes later, my friend was in the same area and a character spawned in front of him and instantly killed him. I also had another friend today die at the Airfield(Krasno) instantly and I was near Olsha coming back again to my base when I also died a couple seconds after he did. Every one of these times the death was instant. I don't know if it's a bug or if there is a hacker.
Server is: DayZ US - NY 5137(Temporary) Address: 134.255.214.98:10700