Thanks for the link. That's a good first step, but, considering the liberties Ubisoft apparently has taken with surface and AA gunnery, along with perhaps not accounting for the effects of torpex and the neutering of historical night surface attacks, I still wouldn't know what creative license they've taken with these sensors.
That's a good point about some merchants having radar instead of some version of Japanese Metox. It must be useless past ~18 km if so, because no one ever reacts to us running ahead to that distance. I don't have enough examples but my impression is that ships in difficult conditions like these do not maneuver to avoid us beyond 600 m or so unless our radar is on. Perhaps only the largest freighters, my target that night, and tankers have it.
Berserker, these are the first targets worthy of a Mk 16 we've seen in days, even off Tokyo, and the ceasefire is less than 10 days off. And because I'm a bloodyminded SOB.
ETA: both convoys changed courses to stay roughly parallel - apparently bound for Sitka (WTH?) - but not remaining mutually supporting. That's where I really question the game's AI.
Both had the same number of ships but one convoy had one escort to the other's four. One torp and a little gunnery practice later, there was only the one convoy left, with two of its heaviest units sniped so far already. The surface awash and flank attacks don't work in this situation; I have to run ahead, submerge perpendicular to the center column, ascend from the thermocline once the lead DD has passed, then dart back and forth between the center and an outside column to maintain enough distance for the torpedoes to arm while still keeping the target in sight.