Yeah, that helo water evac was interesting, and in darkness no less!

When an evacuation is needed, there is an emergency. In most emergencies, many (if not most) people will revert to herd behavior and watch for clues in the people around them as to what they need to do. This is where presence of mind and leadership come into play. If you are in that situation, and have not lost your own mind, tell people what they need to do, appear confident, help others stay calm. People will respond and begin to help others. If people stay calm and do not being to step on others in order to take care of themselves then everyone will probably get out OK. There are many cases of just such situations to look at, whether involving aircraft, buildings or ships.

As for what to carry, keep it small, on your body (not hand carried) and preferably in the front. You can control what is on your front better than something protruding out from your back. That is why I like a good size fanny pack. It can be worn diagonally over one shoulder, sitting on your front torso. It can be maneuvered around to the back or side easily if necessary, and can carry the items that will not fit in a pocket.