A mass casualty incident (MCI) is defined, as an incident that involves more casualties than a local medical response unit can handle effectively with immediately available resources. The general rule of thumb is an incident with 25 or more patients. Operational Consulting Group (OCG) has developed valuable training and hands-on exercise programs allowing emergency first responders to comprehensively learn, do, and master the strategic, tactical, and medical approaches to handling Mass Casualty Incidents (MCI). OCG’s blended learning approach incorporates e-learning, workshops and an experiential, online simulation. This blended learning approach is targeted to reach the different learning styles in the group, while providing a safe, risk free environment to practice the skills that the Mass Casualty Incident Command System (MCICS) course is teaching.