Active shooter training

It is a sad state of affairs that we now have "Active Shooter Training" as part of standard training for employees. 

My first experience with this training was about five years ago. Much of it was common sense. I actually don't remember much of the information, and the guidance has probably changed since then. If I do go back into an office, I will need a refresher on what I'm supposed to do.

I would like to identify a gap with the training. We have active shooter training, which presumably covers what to do when a disturbed person is roaming around and spraying bullets from an AR-15. What about passive shooter training? What if someone hasn't pulled the trigger but is just wandering around and waving a gun in either a lackadaisical or semi-serious manner? Is the training for that different?

I mean if bullets are flying, then priority #1 is safety. Your life is in immediate danger and that fight-or-flight response should be at a peak level. If someone is just waving a gun around but hasn't pulled the trigger, should that situation be taken just as seriously as if bullets were flying? Perhaps if you're on a movie set with Alec Baldwin, the answer is yes.