Special Effects and Lightning Effects

I'm wondering if anyone else has any success with special effects.
I made a trigger of a lightning storm in a region, I believe it was:
Event:
Every 120 seconds
Actions:
Create special effect(default path of the thunderclap) in random point in (region X)

Very nice when used with rain. I thought other possibilties might be blizzard/blizzardcaster.mdl for example. I was wondering if anyone else came up with other examples of special effects.

That's nice, if I could only get my map working w/o crashing when loading I could actually do some testing.

try to start your map multiplayer and not with the singelplayer crack ..