Acctualy thats the same thing I use in Death Takes a Holiday (its even the same genre as Phobia) Basically you add a trigger zone with
plrinzoneactivateifused script and add lights name in the ifused field.
and add this script to a light, something like:
:state=0:state=1,lightoff
:state=1,activated=1:state=2,etimerstart
:state=2:lighton,plrsound=audiobank\misc\tund.wav
:state=2,etimergreater=80:state=3
:state=3:lightoff,plrsound=audiobank\misc\tund.wav
When you enter the zone the thunder goes on.
Worked so good I was like WTFOMGHELLYEA!!!
My paragon is not on the poster, its in the mirror.