Player Embed Code: Download Embed Share Combat Engineers Participate in MOUT Training at RTI Missouri National Guard Public Affairs Office June 16, 2016 | 4:57 Missouri National Guard Soldiers who re-class as Combat Engineers (12 Bravo) must complete a two week long school that is run by the Regional Training Institute (RTI) at Fort Leonard Wood. The culminating event of the school is the MOUT training. MOUT stands for Military Operations in Urban Terrain.