3d Sounds

[Azrooh]

I'm working on a projectile system, and it requires creating a 3d sound every time you fire. But there can only be one sound at a time, IE someone fires, and a second person fires before the sound is over - the second person has no sound when he fires.
This could be a problem if twelve people are blasting away at zombies with shotguns and hunting rifles. Is there any way to allow more than one 3d sound at a time to be played through triggers? I use GUI.