Being able to accurately analyze and predict performance of networks in Network-Centric Operations and Warfare is critical towards realistic utility of resources. In this paper, we introduce a theoretical framework to address such issues. The framework is decomposable and component-based with plug-and-play functionality. One focal point for the framework is the assessment and prediction of the effectiveness of networks, as well as, network performance and network loads in NCO/NCW. Also, the framework allows for varying levels of specificity in order to provide important analyses including pinpointing bottlenecks, and providing potential corrections. Furthermore, the framework will allow modeling at different and multiple scales, and allow for decoupling of networks and sub-networks in order to understand and predict performance issues and propagation effects of sub-networks within the NCO/NCW environment. This leads to a much better understanding of and capability to determine and restructure NCO/NCW infrastructures for overall performance, efficiency and efficacy.