So me and 2 other buddies were just playing on an official server (DE 4217) and all 3 died at the same time with no cause?

We were all in perfect health, got the BEST protection one can get and all 3 were instakilled. We were running and didn't hear any gunshots or sounds. Hacker or bug? Before this, the server was already acting a bit weird (randomly kicking us off and respawning us at a point we were previous at).

Later we tried to get back to our bodies and only my body was still there. No signs of the other bodies. All my guns and punchcard (!!!!!!!) were still there.