I think you'd benefit from scrolling down the list and reading the descriptions.
But to nudge you in the right direction, I'd recommend first running some of Bills homemade ones, as these will be well above-average quality. It's a short list compared to the whole page, so it won't be hard to find a few.
After that, I'd take a look at SeaQueen's Kara Sea and NATO missions. Also look for TLAM's missions (he does Cold War type stuff ans some others) including Kolbenesky (sp?) Ridge. My own Hold the Line might be along the lines of what you're looking for too... Maybe Atlantic Convoy Escort too (but probably not).
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