Don't get me wrong, I chose to put all these options on, but I had no idea that Commander affected the periscope views. I was just grumbling that all these misfortunes happened simultaneously. I think these options add varety.
Strangely, this will work out as my best patrol to date (assuming I make it back to base...) as I've fired 7 torps for 35,000 tonnes so far. Having said that, the tanker I sank was a complete fluke, as one of the 2x shots I made at a large cargo missed and sank a medium tanker! :rotfl:
I'll try the attack periscope after the next reload. Perhaps it'll be fixed by then.