1. Download the Attached Mission and And Load It into the Game.
2. walk into the Left Hangar to hear an ALARM sound that's included in the game by the DEVS.
3. walk into the Right Hangar and you should hear a Custom Sound (DOESN'T WORK ATM).

Got It Finally Working !!!

It seems that the Parameters inside a definition of CfgSFX Class have changed, that's why I was unable to get it working.

At the moment BI Studio WIKI doesn't include an overview of CfgSFX Class for ARMA in description.ext!

http://community.bistudio.com/wiki/Description.ext

Users are forced to use the only Official available reference to CfgSFX Class @ http://resources.bisimulations.com/wiki/CfgSFX_Config_Reference which is not correct and won't work in ARMA3.

To get it working, there is an additional parameter that needs to be added to the definition. Sound Attenuation or Max hearing distance from the source!

Here's what works in the given example.

class CfgSFX
{
//This class name is used in the type parameter of the effect.
class Transformer_SFX
{

sounds[]={"sound1"};
// soundName[] = {"path to file", volume, pitch, max sound reach distance, probability of being played, min delay, average delay, maximum delay after the sound};
sound1[]={"sounds\Trans_SFX.ogg",10,1,100,1,0,0,0};
//empty[] = {not used, not used, not used, not used, not used, minimum pause, average pause, maximum pause};
empty[]={"","","","","",0,0,0};

};
};

Can we have someone create an Overview of CfgSFX Class on BI Wiki Description.ext page.

Thank You

Sincerely
Lt Lyko