It feels to me like there was a big drop in towed array performance overall going to 1.5. Having the towed array on any western boat out to less than half length can't pick up anything that isn't a cruise liner <~5nm away, and I can only hear warships and submarines at all if they are equally close and the array is completely extended.
I've tried several single missions and campaigns since updating and I usually get blown out of the water by something I couldn't hear that got within a few miles of me, it's pretty frustrating
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