The goal of this NSF funded project is to developed and evaluate a collaborative immersive environment in VR for active shooter response for BSU campus and at UNT Campus. Immersive collaborative virtual reality environment also offers a unique way for training in the emergencies for campus safety. The contribution lies in our approach to combining computer simulated agents (AI agents) and user-controlled autonomous agents in a collaborative virtual environment for conducting emergency response training for civilians and security personnel's. The immersive collaborative VR environment offers a unique method for training in emergencies for campus safety.