Well it depends, there are alot of ways you can make hem go off. I'll give you a few
1)Go to triggers
Create a new trigger and a new condition and effect
Go to condition
Select object selected
Select effect
Select play sound(or if you want to play a sound and have a pharse come up at the same time select display intructions)
Then select the sound you want.
2)Go to triggers
Create a new trigger and a new condition and effect
Go to condition
Select object visible
Go to effect
Select play sound or display intructions
Select the sound you want
3)Go to triggers
Create a new trigger and a new condition and effect
Go to condition
Select destroy object
Go to effect
select play sound or desplay intructions
select the sound you wish
Hope This helped!Hero_Tuvok1
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"You ask,what is our aim? I can answer with one word: Victory."
-General James Solomon