That is a bit crap (not the game,just the aircraft element) if you ask me,you would have thought the Luftwaffe would at least fight back and protect their bloody U-Boats,I mean I am just 50km west of France on my new patrol and already had to face 2 Hurricanes.I quickly sent in a contact report and waited...nothing.I even tried to fight back for about 10 mins,even at close range,and it looks like the gunners are pissed up,they couldn't even hit their own lips!I mean,even as the planes bear down on me from bang astern the gunners don't even shoot back sometimes!,even on fire at will orders! man...what a nightmare!
I guess the only defence is to dive and pray you get under quick enough
