RainGen script

[Reorn]

class RainGen expands Effects;

var(Rain_Sounds) nowarn int SoundRadius;
var(Rain_Sounds)	int RainVolume;

//set all our variables.
simulated function PreBeginPlay()
{
 (...)
 PlaySound(EffectSound1, Slot_Ambient, RainVolume,,SoundRadius);
}

The command is not executed.
Sounds cannot be emitted from the PreBeginPlay function.
For this reason, variables RainVolume and nowarn int SoundRadius are not used.

I think you should remove this line and mark both variables as unused.