So how do you become a self-taught deadly warrior of the night? You begin in the daytime. Lay out a walking path through your neighborhood “Area of Operations,” a path with plenty of transitions across all types of urban, suburban and rural terrain. Culverts, gullies, overgrown chain link fences, woods, meadows, railroad tracks, bridges, power line right-of-ways, abandoned commercial properties and fallow fields will be your classroom. To begin, mark your route every twenty or thirty yards. Small torn rags stuck on fences and tree branches look fairly natural, and won’t be noticed. Walk and crawl through thickets, under fences,...