We've been looking for something similar for a while now. The only problem with this event is the amount of training required and the fact that there is just this one event a year in which to use it.

They had a "lite" version in 2013, the first year I did it. There was not a lot of participation, so they dropped it. My suggestion to people who are interested is to simply try it and modify your own plan. It's generally set up in a mission format. A mission consists of 8-10 nav checkpoints. Set a goal of completing one mission and then play as many games as you have energy for. I intend to do exactly this with my son when he's old enough to participate. We'll stomp out one mission and then run around doing all the shooting and all the other silly games. It's a huge adventure and the best two days of my year. Participation at any level you're prepared for will be a ton of fun.