I was on Balota, walking around, and suddenly someone attacked me (by the sound appears to be punching) but there was no one around, I went outside to check, and still someone was attacking me from different angles, I tried to attack him and it appears I did (I saw some blood in the air) but it stopped quickly, the person was still attacking me and when I tried to attack it changed the angle)
I saw some other players earlier in the session, so it wasn't a general bug. it was someone who apparently was exploiting a bug, I asked if there was someone near and didn't get a reply. when I was nearly dead I heard a microphone, (or a sound that never heard on the game).
this happened just 5 minutes ago.