Modern combat increasingly takes place inside cities, often indoors, alleys, sheds, in environments with a restricted space where everything happens very quickly and with opponents that are not easy to identify. In such a situation, positive identification of the target becomes essential so that the soldier can correctly decide whether or not to shoot what s/he is seeing. This is one of the challenges that the Marine Corps faces: to prepare the soldier for a new reality in a safe and low-cost way. For this reason, Virtual Reality can be a plausible solution to this problem, preparing the military in its decision-making process and efficiently for a combat situation in a confined environment. The present work was based on two virtual environments, the first one is a training room, and the second a Close Quarters Battle (CQB). In both situations, 8 trainees were evaluated by 4 instructors, where we obtained positive results regarding the possibility of use of the system in CQB training to teach positive target identification, in addition to proposals for future studies.