We're setting up tactical shotgun matches at a local gun club, and we have a pretty good layout that's good for beginners. But we would like to get some ideas for more challenging courses. Right now, it's shotgun only and range should be well within 100 yards (the farthest target in our course is about 40 yards at the moment). Later on, we will be doing tactical rifle matches and we'll have a 200 yard limit to work with. Ideas for barriers, pieing an area, targets at multiple heights, hostage scenarios, even moving targets...all ideas and layout plans are welcome. Thanks, guys.