This paper discusses the development of the interconnection of the Submarine Multi-Mission Team Trainer (SMMTT) at NAVSUBSCOL and the Weapons Analysis Facility (WAF) at NUWCDIVNPT. This capability was quickly developed as a proof-of-concept for Submarine Command Course (SCC) high fidelity training (prior to an in-water exercise) with a Hardware-in-the-Loop (HWIL) torpedo using the latest torpedo software. The purposes of the demonstration were to show the ability to train with the latest torpedo software prior to Fleet release, to train using weapons against high fidelity threat models and in high fidelity tactically significant environments, to leverage the latest exploitation for training purposes, and to use proven High Level Architecture (HLA) connectivity. The demonstration provided the Fleet the new capability to train on the latest tactical configuration prior to release of that weapon to the Fleet, through the novel use of a facility previously only dedicated to weapon development, test, and analysis purposes. The paper reviews the development of the capability, how the capability adds value to SCC and Combat Team training, lessons learned, and potential application to preview Combat Control and Weapon System improvements prior to costly at-sea firings.