Mike, when you have made 50 posts you will have access to the articles section. There is an excellent in depth article written by Garry that shows all the criteria that had to be met in order to earn this (and all other grades) badge. It's too much detail to fit in a post, but they had to show certain physical abilities and other "field" type skills to earn the badges. Here's a link to the article that can be seen after you make 50 posts on the forum.