The area of concern addressed by this research is the development of an Automated Tactical Operations Command. Control, Communications, and Intelligence Planning Tool (ATOC3IPT) to aid commanders and their staffs in the decision-making process. The tool is based on Hyper-NPSNET, an application which integrates a single level hypermedia overlay into a 3D virtual world with at most a single instance of each type of multimedia information available at each 3D location. However, Tactical Operations Centers (TOCOs) require multiple overlays, each with possibly multiple instances of each type of multimedia information available at each location. Also Hyper-NPSNET is a single user system whereas the TOCs require a multiple user system with restricted access. Tactical information display and query retrieval requirement of the command and control organizations were studied. A database structure and control hierarchy, were designed. An appropriate graphical user interface (GUI) was developed. The hypersystem used in Hyper-NPSNET was extended to include multiple, permission-protected overlays with multiple instances of each type of multimedia information available at each location. The resulting ATOC3IPT is a battlefield planning tool which incorporates today's technology. New hypermedia information display, editing, manipulating users, and retrieval methodologies not available in Hyper-NPSNET are included. ATOC3IPT is designed to be used by multiple users and with multiple instances of multimedia information types, whereas in Hyper-NPSNET a single user can work with one single-level overlay. This tool assists the commander in the decision-making process, and provides an excellent training tool for staff officers.