House Highdown Maritime Forces

SSTF
Massive submarines, over 300m in length and powered by a fusion reactor engineered for low noise output. Each vessel boasts two full-size voidship torpedoes capable of launching from twin tubes on an erector mount and hitting voidships in orbit. They also mount forty missile tubes, each able to hold one intercontinental ballistic missile or four smaller cruise missiles. The submarine must surface to fire the voidship-scale torpedoes, but can cold-launch the smaller missiles from beneath the waves.