I just wondered about the level of intel the uboat commanders had access to during the war. We know the germans had spies in all important allied ports and reported ship sailings, size and type of escort ships etc.
Was this information available to the guys at sea?
If it was, it would be a very neat thing to have in the game. Imagine getting a report that a large five-column convoy with several large tankers and light escort left Boston harbor three days ago with the western approaches as the likely destination. From this you could start calculating and guessing where that convoy would be at this moment and maybe position yourself for a good attack.
Another thing that could be nice to get reports about was targets of opportunity. Let's say that a sub running low on fuel or weapons has spotted a damaged freighter running very slowly behind its convoy. If you could get a radio report about it, you could intercept it... and the convoy
I know that the random reports about convoys in older games was supposed to mimick this, but it feels so "gamey" to get a convoy report automatically printed on your map. Also, it never said anything about convoy size or composition. All the description you got was "large" or "small" along with speed and course.
Anything to force us to think in these simulations is a good thing