Official copies are restricted to U.S. Government agencies and their contractors. Publicly available versions or physical copies can often be found through authorized military publication retailers like My Army Publications specific mission planning steps mentioned in Chapter 2, or perhaps look for related SF manuals like ATP 3-18.10? ATP 3-18.4 Special Forces Special Reconnaissance – 2021
If FM 3-18 explains why SOF target, ATP 3-18.4 explains exactly how to build a target folder, conduct collaborative planning, and execute lethal or non-lethal engagements. atp 3-18.4 pdf