Immediate Threat CQB – ITCQB is a hybrid system, developed through time by Eli Feildboy, the founder of Project Gecko. Tight and confined spaces or L-shaped rooms can be difficult to clear with a teammate without flagging each other. In the second installment of the “Pro’s guide to CQB” series, Eli talks about what we can do to prevent friendly by diving into the details of footwork, body contact and positioning in any situation.