Stats for Sevastopol Class. Sevastopol class (Fleet of 20 Submarines) Each Sevastopol class is equipped with at least 4 SLBM's held in the central row along the spine. At any one time, all Sevastopol class SSN-B's are equipped to defend the UIS. the SLBM's can be launched under ice, in port, or at sea. At minimum there are 6 equipped with a full nuclear deterrent of 24. Silos: 36 SLBM Capable Silos: 24 Warheads per SLBM: 10 Explosive Weight (In Kilotons): 500 kT Total Nuclear Payload: 120000 kT