how to fix the sound source shot in the national gunz

[Topete001]

Hello guys, hope you can help me, I use a source of national, however the sound of the shotgun is very strange, and when active 3D sound (/ sound) the sound of the shot is missed through. someone could help me get the sound the style or the artic gunz quality gunz (08)? I believe many are wanting to fix this bug. anyone who can help will be helping not only me plus many other people around. I await answers.

[MentaL]

[yerij007]

Check your audio driver or control panel / check the game options.