This paper explores the integration of Discrete Event Simulation (DES) and Virtual Reality (VR) technologies, focusing on JaamSim and Unity. By combining the strengths of both, we aim to enhance simulation capabilities across various domains. The integration leverages the High-Level Architecture (HLA) IEEE standard to address interoperability and synchronization challenges. This approach mitigates resource consumption issues seen in traditional methods that rely on extensive data transfers, which are dependent on network and server performance. Our integrated system provides an immersive and interactive environment that improves user engagement and decision-making. It allows trainees to better understand complex processes through hands-on VR experiences and enables decision-makers to visualize the impacts of different strategies in real-time. This approach maintains a constant rate of messages per client cycle, irrespective of the simulation length, unlike previous methods that heavily depended on the process duration.