Aircrews have leveraged simulation for several decades to immerse themselves in complex mission situations, develop new concepts of operations (CONOPS) and tactics, techniques, and procedures (TTPs) for the next fight, test new capabilities, and develop robust and adaptable mission performance. While the Air Force endorses simulation-based training as a vital need for aircrews, currently there is not an analogous capability available for intelligence analysts. This gap becomes more crucial as we prepare the next generation of analysts for potentially drastically different operational environments where Air Supremacy is not guaranteed, denied environments are the norm, and cyber warfare plays a frightening role. Simulation-based training is needed to prepare analysts for these environments. Although, in general, simulation-based training is thriving across many domains (e.g., flight simulation, driving simulation, shooting simulation), little work has focused on training for Intelligence, Surveillance, and Reconnaissance (ISR) professionals. Requirements for developing a realistic, simulation-based training environment for ISR tasks are distinctive from those required for Aircrews. Simulation of the large variety of information sources is the key. The objective of the current effort was to identify the requirements underlying development of a simulation-based training capability to maximize the efficiency and effectiveness of training for ISR. To tackle this complex problem set, the Air Force Research Laboratory (AFRL) Warfighter Readiness Research Division leveraged Mission Essential Competency analysis in conjunction with cognitive task analysis to identify key requirements for high fidelity, simulation-based training for the ISR. This paper will describe the challenges facing creation of simulation-based training for ISR, work to develop a training capability for these critical warfighters, and our vision for future ISR simulation-based training.