We were running through the industrial area north of the Myshkino tents when we all got one tapped nearly simultaneously by what I'm guessing was a suppressed assault rifle. All of us had plates carriers so it had to have been headshots. Feels like a hacker to me.

IP: 209.192.159.196
Time: 9:20 PM PST
Steam 64 ID: 76561198410151429