Forgive me - but I'm not really sure what you guys mean.
The Frigate is set approximately 15 nautical miles from the center of the random spawn in points of the submarines... I would think that's far enough from the submarines that it wouldn't cause an issue.
Especially considering that when playing the Frigate, one can't hear the submarines on sonar at all until one gets a lot closer to the submarine.
There are other US Naval shipping in the area (depending on spawn in) - but none of them are ASW vessels (a Tico and a DDG).
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ADM Mako
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