UF PRO's Guide To CQB shows how one can clear a room without any backup... "Immediate Threat CQB - ITCQB is a hybrid system, developed through time by Eli Feildboy, the founder of Project Gecko. Before we start with team tactics we are going to present one-man room clearing tactics, which fit the concept of team tactics in the ITCQB system. In this video we focus on geometry when entering a room and break down the angles into 5 key sections - narrow, 45, 90,150 and 180 degrees. Learn more on how that can help you when slicing the pie in a pressure situation."