https://dl.dropboxusercontent.com/u/3954039/Temp/CiS2NoPause.capx
I see you solved it already, but I was taking a look and solved it in a slight different way. I switched the "spawn" event by "create", and it probably worked because I changed the layer too.
Then at the end I saw you used an "else" after an event that was supposed to pick an object (copter). Elses don't pick objects, so you can't have:
Copter Shootertime > 0...
Else...
Else simply means "if the previous event didn't run". Here's the manual page: https://www.scirra.com/manual/124/system-conditions