I still haven't figured it out. Truth is off, and I did realize that the fire control station was in three separate parts. I'm at the 'target display' part and can't figure out how to get the damned solution into the torpedoes (or anything, for that matter...). When I right click on the contact, the 'engage with...' option doesn't appear. And it's not only sonar contacts... there are ships around and I can't assign radar contacts to my ASMs either. And I tried different missions too to make sure it wasn't some weird bug in just one game.