The RAiDER Training program exposes first-on-scene responders to the tactical skills necessary to operate successfully in the unique tensions of an active shooter setting – a hostile environment, populated by large numbers of civilians, with an Active Killer attempting to achieve the highest body count possible in the shortest amount of time. This is not a normal event, nor is the response. There will always be a first officer on the scene. If he or she waits for more officers – as is the protocol in many units – who are we portraying needs help more? The officer or the victims under attack? Solo engagement training is designed to provide officers with the necessary mental and physical skills to draw the attention of the active shooter away from the potential victims, confuse and frustrate the shooter, and successfully neutralize the situation.