Its been happening to me too. Along with gun sounds being either glitched or non existant. Both things appeared at the same time. The dualies have no sound on my end and other players have said them same when I shoot it and when they shoot it. I've heard its the same with the M1 Garand tooWhen you rejoin again if you could let us know if this happens or not. If it doesn't I'll go ahead and close this.