I have read many tutorials but I havn't found one for touch on and off activation. Can anyone please help me.

shall it sound like coming from a certain spot?

what wouldnt add alot of lag, certain location or throughout at a low even volume.

Have a look at this

It's written for WaW but its doesn't really change much throughout the entire game series. Im not sure if cod4 uses script_structs, if not you can use script_origins instead.

That should get you started, if you have problems let us know.

even volume is possible via ambientplay() and musicplay(), but will be played for all players

so playSoundToPlayer is the only option for your case, which plays a sound as if coming from an entity. if the alias got the following settings, it might sound like even volume:

vol_min 1
vol_max 1

here is the relevant code of the tutorial Mystic posted:

main()
{
	thread radio();
	thread generator();
}

radio()
{
	radio = getent("radio", "targetname");
	trig = getent("radiotrig", "targetname");
	while (1)
	{
		trig waittill("trigger");
		radio playsound("talk_01");
		wait (36);
	}
}

generator()
{
	generator = getent("generator", "targetname");
	trig = getent("generatortrig", "targetname");
	while (1)
	{
		trig waittill("trigger");
		generator playsound("run_01");
		wait (3);
	}
}

if you changed it to:
trig waittill("trigger", player);
generator playsoundtoplayer("run_01", player);

it wouldn't work, as it will wait the given time before playing it again - which is fine for 1 player - but the first player will block the audio output for all other players.

you may try this (untested):

main()
{
	thread radio();
	thread generator();
}

radio()
{
	radio = getent("radio", "targetname");
	trig = getent("radiotrig", "targetname");
	trig thread playsoundtoplayer_thread(radio, "talk_01", 36);
}

generator()
{
	generator = getent("generator", "targetname");
	trig = getent("generatortrig", "targetname");
	trig thread playsoundtoplayer_thread(generator, "run_01", 3);
}

playsoundtoplayer_thread(entity, soundalias, waittime)
{
	while (1)
	{
		self waittill("trigger", player);

		if (isdefined(player.soundtrig_wait) && player.soundtrig_wait)
		{
			wait (0.05);
			continue;
		} else {
			entity thread playsoundtoplayer_wait(soundalias, player, waittime);
			wait (0.05);
		}
	}
}

playsoundtoplayer_wait(soundalias, player, waittime)
{
			player.soundtrig_wait = 1;
			self playsoundtoplayer(soundalias, player);
			wait (waittime);
			player.soundtrig_wait = 0;
}

Thanks I will give it a try, this is with a trigger or script origin?

Sevenz writes...

When a player hits the f to start the play will all others hear the music in the distance and near? or just that player?

it's trigger plus another entity, e.g. a script_model, but can also be script_origin (to be used as virtual sound source)

playSoundToPlayer will play it for the triggering player only.

not entirely sure if my suggested code will work for trigger_use, i thought you wanted trigger_multiple

Im looking for the normal ambient sounds to be heard but when someone triggers the music all will hear the music coming from a location. I will draw them in and kill em all lol.