SC2Mapster

@SouLCarveRR: Go

Ah yeah I forgot that...my mistake :3

@Reaper872: Go

If you want to do it at a random point in the game then you can just change it to this:

        Unit - Order Nuke Unit to (Ghost - Tac Nuke Strike targeting (Random point in (Entire map))) (Replace Existing Orders)

@Reaper872: Go

Did you read the trigger at all..?

@Sherlia: Go

How would you do this?: Triggers obviously :)

How should you think when making this event?: Not sure I understand this question to be honest as you just have to think logically I guess?

Global Variable: Nuke Unit = Any Unit <Unit>


Nuke
    Events
        Timer - Every 100.0 seconds of Game Time
    Local Variables
    Conditions
    Actions
        Unit - Order Nuke Unit to (Ghost - Tac Nuke Strike targeting Your Point Here) (Replace Existing Orders)
        Unit - Order Nuke Unit to (Ghost - Tac Nuke Strike targeting Your Point Here) (Replace Existing Orders)
        Unit - Order Nuke Unit to (Ghost - Tac Nuke Strike targeting Your Point Here) (Replace Existing Orders)

This should work in theory I guess. Just place three points on your map instead of Regions. You can try it out and return as I have not tested it myself. If the nukes have cast time then I would suggest you find that cast time and subtract it from the 100 seconds so that it matches.