- Having a common US-Australian combat system promotes interoperability between US nuclear
submarines and Australian submarines (making this an important aspect of the US-Australian
submarine service - as this combat system is already used on Australia's current Collins class
The highly senstive nature of the AN/BYG-1 meant the US Government had to be confident that the DCNS document leak crisis of August 2016 was over. Sensitivity also meant only US companies (Lockheed Martin and Raytheon) were allowed to compete in the Combat Systems Integrator limited competition. In the building of Australia future Shortfin submarine, from about 2025 onwards, there may still be security, technical and business issues that devide the US combat system companies from DCNS.