The U.S. Army Research Laboratory-Human Research and Engineering Directorate, Simulation and Training Technology Center (ARL-HRED STTC) performs research and development in the field of live/virtual and immersive technology with real-time Ultra-WideBand (UWB) tracking technology. This technical challenge has been thoroughly researched for many years and recently UWB technologies have become more mature. The basis of these studies is that live soldiers must be accurately located while virtual soldiers must stay immersed all within a common real environment. A novel integrated system approach previously developed has been updated to take better advantage of new UWB tracking systems, inertial measurement units, and global positioning system sensors. These redundant tracking sensors with uncorrelated error sources have been intelligently fused in real-time and combined with existing inverse kinematic technologies related to immersive systems developed by STTC, to provide a fast update rate tracking solution with full body articulation. The UWB component has also been optimized to allow for faster update rates and more intelligent responder choosing algorithms with transitioning between responder zones in the physical area; with the benefit of reducing the total UWB infrastructure requirements. This paper discusses extending these ongoing efforts to a more simplified system design and initial experimentation to demonstrate an improved soldier tracking and telemetry system which offers seamless indoor/outdoor tracking capabilities for live/virtual bridging with sufficient accuracy for high fidelity demonstration at the STTC facility, Military Operations for Urban Terrain, and other physical locations applicable for dismount training. The solution to real-time 3D location with high accuracy (< 1 ft) suitable for augmented reality over operational environments requires redundant systems with equivalent accuracy (when available), uncorrelated error sources to provide at least one tracking modality in denied conditions, and a high update rate for real-time systems.