Ah... reminds me of the day I was on ALERT and told to fire up the engines because we had incoming nukes.
No questions asked - LOL...
AF Procedures have been changed a bit since then to alleviate a bit of unnecessary laundry.
LOL, AFPhys. And "hey" to you. I've been away for a few days. ;-)
At one time they wouldn't tell the crews it was a drill until they were airborne, with live nuclear weapons in the bomb bay! Then they started telling them just before they moved onto the active runway.
Missile launch are, or so I'm told, never told its for real, unless of course it is. (Baring the odd accident when the real message to get ready to launch is accidentally sent instead of the practice one. Happened at least once that I know of).