The Captive Carry Sensor Testbed (CCST) prototype program, developed by Paragon for the Army Materiel Command and AMRDEC, addresses a critical gap in current missile testing capabilities. Hardware-in-the-loop (HWIL) facilities fail to accurately capture multi-mode sensor operation, particularly in diverse weather conditions. Paragon has engineered an innovative solution: a jet- powered unmanned aerial system (UAS) that integrates a sophisticated Captive Carry Sensor Testbed architecture to solve this. This advanced UAS, capable of exceeding 250 knots, is designed to perform multiple "missile-like" missions daily. It simulates realistic missile guidance trajectories, including pullout points and autopilot/waypoint guidance, allowing for precise hit-point extrapolation. The system's primary objective is to capture multi-mode sensor performance characteristics across various weather conditions, supporting the development of "super" high-fidelity sensor modeling. The CCST program incorporates many key features that enhance its capabilities. These include comprehensive sensor integration, a robust ground control station, and advanced vehicle modeling and simulation (M&S). The system utilizes sophisticated autopilot algorithms for trajectory reconstruction and evaluation, and track and navigation systems employ Kalman filtering. It also integrates cutting-edge inertial measurement unit (IMU) technologies, telemetry systems, and guidance algorithm development tools. The program emphasizes rigorous testing methodologies, including HWIL and ground testing, as well as communications integration and test procedures. Additionally, it employs sensitivity analysis and Monte Carlo synthesis for comprehensive performance evaluation. By enabling high-fidelity modeling and simulation in diverse environmental conditions, the CCST program aims to significantly enhance the effectiveness and reliability of military operations involving missile systems. It is expected to yield improved accuracy in sensor modeling, enhanced capabilities for all-weather operational testing, and more realistic HWIL simulations. These advancements will provide military commanders with better tools for decision-making and contribute to the refinement of weapon system doctrines. The significance of this program extends beyond technological innovation. Addressing the limitations of current testing methods paves the way for more robust and reliable missile systems. The CCST program represents a crucial step forward in military technology, promising to enhance understanding and confidence in weapon systems under real-world battlefield conditions. Ultimately, this initiative by Paragon for the Army Materiel Command and AMRDEC could lead to more effective and well-informed military strategies and operations.