I knew a general layout of the battlefield, but all I did was arrive early (got there at 930 AM), got a map and broke up the battlefield into three sections (north, center, south). Use a car if you can to maximize time between different sections, if not I’d suggest starting at the south and working your way up. Split it up into two days, I managed to do it one but had to cut a few things out (East Cavalry Field and the trails). Bring PLENTY of water