The SSN Expansion adds SSNs for use instead of Task Force Ships. Your SSN acts alone to clear out Soviet Forces, adjusting your SSN depth to attack Ships and Subs above and below the Thermal layer.
Contents: 8 SSNs (48 Cards), 4 SSN Commanders (24 Cards), 1 Counter Sheet, 4 Campaigns, 1 SSN Expansion Rulebook and 1 Summary Sheet.
