Most people (read: tourists) tend to stay on the marked paths, follow the pre-programmed audio tours, or drive by, stop, read the signage, and move on. Want to have some fun? Seek out someone who knows the field (the NPS can most certainly arrange something for you) and ask to go off the beaten path. Seek out the rarely seen, the unusual, the forgotten. Visit the field during off hours or during the non-tourist seasons. I’ve done this all of these things myself and I have had quite the time. I have had the Shiloh and Perryville battlefields to myself, I have been to places at Gettysburg that only experts on the battle could ever hope to find. Do it. It will be worth the extra effort. And if all else fails, you can just stand by a cannon and point. This has been a battlefield tradition for over a century.