Updated to (probably) final version:
http://pastebin.com/9mE2JZbd
or via dropbox:
https://www.dropbox.com/s/26u3b3blke...elease.mu?dl=0
Thanks to everyone for the suggestions (touch3.wav file) and catching the few left over scripts from the missions very early beginnings a few days ago. I have polished up everything I can think of for now. Of course I will always think of something. If I had to make one more change I would improve the scoring system, even though it works okay as is.
A heads up for multiplayer: It seems that not all players will see any triggered radio messages. I'm not sure if this can be fixed.
Let's see now if anyone can beat it!