VBS3 is a fully interactive, three-dimensional, PC-based operational environment for military training. It offers both virtual and constructive interfaces onto high-fidelity worlds of unparalleled realism. The system can be used for individual and collective training to enhance the “crawl/walk” phases of unit training. Units can use the system to develop, rehearse, and refine Unit SOPs and TSPs. VBS3 supports rapid, real-world terrain development and can be accessed via world-wide Digital Training Facilities (DTF’s) and on Deployed Digital Training Campuses (DDTCs).