A UAV-based weapon system can perform boost phase intercept and attack the booster's launcher. A critical ingredient for the success of this mission is a smart BMC3 that is fully integrated with the weapon system elements. It must have many functions digitized to meet the requirements of the very stressing mission timelines. Weapon system architecture, concept of operations, and approaches to smart BMC3 are described in this paper. Examples include BMC3 function digitization and integration.