Thanks for the feedback everyone. Simplicity has its advantages. I have to admit that I've pushed the envelope with triggers and events a couple of times. Some day I'll learn not to use so many bells and whistles simply because they're availble.
It's funny how you should mention history, Mushroom. Most of my missions are based on historical accounts. Many of them are a little too challenging for me though which is why I'm trying to tweak them a bit. There's nothing more frustrating than being shot down before you reach your assigned target.