Training system design for major weapons historically began with a mature weapons system design, having been overlooked during the critical design and development phases. The Crusader program will reshape the Army's training system design paradigm through concurrent development of training. The Crusader program will field the cornerstone 21st century cannon artillery and artillery resupply systems, the Crusader Self Propelled Howitzer (SPH) and the Crusader Resupply Vehicle (RSV). In order to meet the requirements of the United States Field Artillery School, the Crusader prime contractor must consider technologies such as Embedded Training, Distributed Interactive Simulation, and Tactical Engagement Simulation during the early phases of weapons system development. The Crusader materiel developer must make decisions regarding training and the allocation of training tasks to various training media early in the acquisition process, prior to Crusader design freeze. The Crusader training program will examine training needs with early soldier-in-the-loop simulators and will leverage concepts from these simulators into the emerging training system design. This paper examines the goals, philosophies, and challenges faced by the Army as it develops a total training system for Crusader.