In MP, the player does not hear the sound of Projectile flight of any Missile, the test was conducted through a ServerDiag, as you can hear, the understanding that something flew by was nothing but a clap over the player and either arrival at the player.
As far as I remember, the problem started with patch 1.6 In SP, there is no such situation, the player can hear and understands that a missile has flown. even at a short distance, you can already hear that a Missile is flying. Video testing was carried out with hydra 70 missiles (in practice, the problem is with any Projectile of the missile type).


Please consider this bug as critical.