not a joke people, the guy who the sound was coming from does not use custom sounds. Lex i know how to locate other players custom sounds you don't have to keep telling me.
I've even found another video online from a while ago where someone else was having the same thing happen:
https://www.youtube.com/watch?v=L2rEsJiQS_o
I just thought BIS might want to look into it but if no one will believe me then whats the point of reporting these things.