All variants of the TLAM offered mid course GPS and/or inertial guidance sources from what ive read on the subject.
none of the TLAM variants, ever, were simply straight run as indicated in game.
at the very least, cold waters should allow for waypoints to be set for the TLAMs
and i maintain, that from a tactical standpoint, there would not be a need to fire tube launched or VLS launched TLAMs in 200 foot of water within mere miles of surface and air based ASW assets... to do so would simply be suicide.
even if you managed to substantially alter course and speed after firing the weapon, you would have no depth for vertical maneuvering, and the airborne ASW threats would have your position nailed down to within a 2-3,000 yard margin of error and would have a response time measured in minutes - probably 3 minutes or less. Frankly, you'd be boxed in right after launching your sortie.
with TLAMs as they are in cold waters, the best bet is to get as far away from the port facility as possible and make your attack.
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