The Manual For Courts-Martial (MCM) mobile app is here!!! The Manual for Courts-Martial is a manual used by the United States military for conducting courts-martial. The manual has been converted into an app which includes bookmarking and search features. MCM Mobile includes versions from 2012 to 2019. MCM mobile app includes the Preamble, Rules for Courts-Martial (R.C.M.), Military Rules of Evidence (M.R.E.), Punitive Articles, Punishment Procedure, Uniform Code of Military Justice (U.C.M.J.) and Maximum Punishments.