it feel like we didnt run but actually walk fast with military style walking. only problem for me is that we move too slowly imho. It's a bit of a slog but worthit in the long run. It's a great way to give your maps an early boost and have a good amount of need zones by the time all the outposts/lookouts are discovered. Although most of these locations are less than that distance from the next closest. Although I do have a rule that any travel over 1.5km I use the atv to get to 1.5km away and then walk the rest, since 1.5km isn't very far even at walking pace. You find more need zones that way which helps out later on. I actually walk most of the map from outpost to outpost and lookout to lookout.
Can't imagine walking 100+ miles at a time on a new reserve map. I use em to setup tents in advance of a hunt, and initial scouting of POI's so not too concerned with noise in that respect.