You don't need military training, you just need training. Often that just involves going through the motions and getting your head around whatever the problem might be. Much fear and panic is based on the unknown -- "I've never been there before, what do I do now?". Get comfortable with the emergency procedures; go through the motions, find the emergency exits and if they aren't alarmed, walk through and take the stairs.

A lot of military boot camp is focused on physical conditioning, you don't need military boot camp to work out and get in shape -- find a gym. Your mind and your body are connected. Mental stress can be mitigated with physical stress; working out is a stress release.

When I took my last (hopefully it will be my last) water survival qualification swim the instructors were testing survival techniques -- pass/fail. It was a one hour work-out that started with simple swimming and swimming underwater, then progressed to putting on the gear and swimming while fully suited. At the end of the hour I felt like I'd had a pretty good work-out. You don't get to that point if you aren't in shape to begin with. That's just a qual and a re-familiarization with survival gear.

In the real world where you aren't in a heated pool but in a cold ocean, the stress (mental and physical) is much higher. The only way to deal with that real world threat is to be physically fit and mentally prepared. Otherwise you become a statistic.

But you aren't in the ocean, you're in a office building. The same principle applies. Get in shape now so the physical stress of the emergency is not a factor and then train with whatever procedures you feel appropriate to get around the mental stress component NOW, before it's real. Train yourself with your evacuation plan now and you won't have to figure it out in real-time when you don't have time to ponder.

$.02