A computer-based training (CBT) system using versatile resources to support multiple training scenarios in a multi-user environment. The CBT system includes an authoring program module accessible by a lesson designer to create a number of lessons. The CBT system includes one or more runner program modules accessible by lesson takers for running the lessons created with the authoring program module. The CBT system also includes a relational database accessible by the runner program modules and comprises administrative information and information for retrieving desired resources. The versatile resources reduce the memory storage requirements for a CBT system capable of supporting multiple training scenarios in a multi-user network environment. The CBT system realistically simulates multi-mode communication systems and implements progressive mentoring and voice-based progression methodologies.