Quadraxas.
Correct me if i am wrong.

The code:
function gunsound2()
{
while(1)
{
if(mouse_left)
{
wavhandle = snd_play(explode_wav,50,0);
wait(-1);
snd_remove(wavsound);
}
if(mouse_right)
{
wavhandle = snd_play(shoot_wav,50,0);
wait(-0.1);
snd_remove(wavsound);
}
wait(1);
}
}

It still waits for one sound to finish to start second one. And i need two sounds playing at the same time.