You'll be glad you did.
The enemy AI is a whole lot better it seems to me, along with better (tougher) vessel mixes.
Still alive in my latest campaign, another Red Storm rising free roam. A couple of close calls, but I haven't lost a boat at least. Great fun this afternoon in a few engagements. The last one was pretty tough, some kind of 2 amphib landing force with a
different escort.
Got most of them but the 2 Alpha's that appeared when I did an active sonar search trying to get a fix on the one I finally damaged. (Sea lance, I didn't have anything else left!)
Fun way to spend a chilly afternoon.