Well, in an extensive mod of the Dangerous Waters predecessor, called Sub Command eXtreme, the modders included a few SSBN's (nuclear ballistic missile submarines). Within the operations of submarine forces, these submarines have a particular tactical role within their larger strategic mission. Missions designed for these ballistic missile boats were designed with those tactics in mind.
So, yes, there is good gameplay involved in commanding a SSBN, within the design of the missions. Mission designers are given a lot of latitude by the game engine to create scenarios for the playable platforms that are entertaining and true to life.
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LW

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