[propbeanie]

Depends upon the dates Cybermat47. It isn't until after October of 1943 that there will be radar on but a few of the escorts types. Around the same date time, there will be a change in most of the sonars from the pre-war short-ranged devices (comparatively) to normal ranged sonar. This all happens about the same time the US torpedo woes are over, so late 1943 to early 1944...

As for "stores" onboard, SH4 does not have the logic for that, at least, not with a 'normal' paradigm, though some settings might be able to be tweaked. Getting an appropriate "message" to the skipper might be slightly difficult, given the way the game works - and how to affect the handling of the boat? There is a "moral" setting for individual crew members, but all of that was "turned-down" back before v1.3 of the game, if I am remembering correctly. That might be slightly easier to tweak. What I would want is something that follows the passage of time, to where if you haven't attacked a ship in 10 days, the moral starts to dip. If you've been out for 55 days, the moral starts to dip. If you're out for over 65 days, the crew "cannot comply", etc. In RL, after initial "in the blind" early patrols, the US would supply the boats for a 60 day cruise, but the boat's had to be conscious of and monitor their consumption levels of everything onboard.