I don't know about the Navy's attempts to use Hawkeyes to provide guidance for SM2's but SM2's can be used in an anti-surface role as well as the anti-air defense role that they were designed for.
All USCG Cutters attached to US Navy Battle Groups will always be located closely astern of the Carriers, fulfilling their dedicated role as the primary Torpedo Interceptor Vehicle.
Now do you understand why us Coasties and Marines say to never trust the Navy.
SEMPER PARATUS and SEMPER FI!!!!!!!!!!
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QMC, USCG (Ret)
The best luck is what you make yourself!