The increased pace of adopting virtual reality (VR) technology in the digital age as a new way of communication, enabled the decision-making concept to evolve in environments influenced by improved technologies and operational processes. Human Factors pertinent to team members sharing a real and a virtual environment (VE) have been examined by capturing the interaction capabilities to gain and maintain individual situation awareness (SA) impacting the team SA level. This baseline has been explored with a Joint Cognitive System foundation and integrated in a modified cyclical model with different modes to measure the level of immersion required for achieving higher levels of SA. In addition, a modified Observe, Orient, Decide and Act (OODA) model is introduced to address how information is collected, processed, and conveyed through the interchange of individual and shared mental models of one user immersed in the real world and one user immersed in virtual reality.