Give some more detail.
Like is it when someone gets somewhere you want an enemy base nuked? Or when something dies?
if i get what you are saying, you want it to be able to nuke people after the conditions are met. what you could do is have computers own the nuke silos and then give it to the players after the conditions are met or run the ai script to have the computer nuke.
yeah, you need to be more clear on what condisions. give us examples
well as i know of you always need a ghost right..
you can just have a nuke drop at some location and also a nuke solo..
Okay if you mean nuke a base of an opponent then you can put a location over that players base and if the player drops a nuke on it and IS NOT ALLOWED then you simply remove the nuke before it explodes at the loss of resources, etc for the retard that dropped a nuke where they weren't supposed to. If it deals with nuking a single unit then you do a similar thing but you need a location that follows each player's units. Keep in mind that you MUST have hyper triggers or you may accidentally allow a nuke to fall. Its not perfect because if someone you are NOT allowed to nuke enters a location that you ARE allowed to nuke, then that unit/building will die or get hurt by the nuke. This is the best i can think of. But if you want to individually hurt players in one small location with a nuke without damaging the surrounding units, its impossible. Nuke is splash damage, just like you hurt your allies with firebats and siege tanks.
ok basicly im trying to make a nuke wars map were u can step onto a beacon and set a nuke off at location if you must know but that helped a lot so tx!!

That isn't possible unless you have a player-owned ghost at each of the nuking locations. Then you just follow the tutorial. Or you could just create a custom nuke with triggers of buildings blowing up and killing the things at the location.
You could have the computer go nuke certain players when you step on a beacon. If you didn't want the nuke to be thwarted you could simply set the invincibility for the ghost. And then, if you wanted the ghost to leave after it nuked, then just have a trigger that kills/removes the ghost when it brings a nuke to the location you are nuking.