The Best SH for a Dynamic Campaign?

[Strangelove444]

Hi there captains!

A few years back I played SH3 with the classic GWX, and recently found myself with a hankering for more submarine action. However, a lot has changed (namely with SH5) and now don't know what I should try.

In short, I'm asking for advice about which SH game have good dynamic campaigns (wolfpacks and the like - anything to make me feel like part of a larger navy instead of just a one-man navy).

I don't have a strict preference between Atlantic or Pacific, so 3, 4, or 5 will be fine.

Lastly, I'm sorry if this has been posted before! I looked around and couldn't find anything recent that answered my question specifically.

Thanks for the help!