I would set up an eighteenth century scenario. The participants would be allowed to use only those things that were in existence before 1780.
They would have to dress appropriate to the time period.
They would have to learn how to load and shoot muzzle load rifles, muskets, and pistols. This would include moving as well as stationary targets. After some of the crazy shoots I've been to, most everyone would be in trouble to pass.
They would only be allowed a 1-pound bag of corn meal, a 1-pound bag of brown rice, 1 pound of jerky, 1 canteen of water, 1 blanket, and a 9' x 9' canvas for shelter.
They would have to make a fire using flint, steel striker, and charcloth with dry tender then wood.
Stealth would have to be demonstrated by whether or not they could get within 20 feet of me without me hearing them.
Use of a nature to determine if they're moving in the right direction and get from point A to point B without getting lost. I've never been lost. I've powerful confused for a day or two but I've never been lost.
I could go on and on and I think I will in a hub. Thanks for the idea, Wayne.