Abstract: Ballistic missile warfare continues to present a significant threat in future conflicts due to its fast tempo and the ability to deliver weapons of mass destruction. The time for intercepting a hostile missile using ballistic missile defence is highly constrained, making workflow improvements necessary to compress the kill chain’s duration. Full-scale flight testing of realistic ballistic missile defence scenarios is difficult, if not impossible, and incurs prohibitive costs. This paper presents a process model of the missile defence sequence, consisting of searching, detecting, tracking, identifying targets, engaging, and damage assessment. The duty cycle of the task sequence executed by commanders and their staff is analysed by simulating the model to identify possible information-processing bottlenecks and overloads under different operational modes of control for battle management. We subjected the model to various tests to generate leakage rate, interceptor consumption rate, and duration as measures of effectiveness. This capability allows for future “what-if” evaluations of numerous concepts for command and control or task reallocation, complementing live Exercises and experiments. Future work could incorporate human performance and missile trajectory modelling to improve simulation accuracy.