Problem is that we cant transmit range date to the TDC.
Night attacks were mostly done with radar ranging.
Totally blind radar attacks were rare, but usually bearing was marked by TBT and the range at that bearing was entered into the TDC.
I don't think that is currently possible in SH4, while the totally useless blind sonar approach is possible....
But as stated in the manual, TBTs were only installed in 1943. In 1942, a skipper on a night surface attack simply had to guess the bearings, range, speed and AOB and verbally pass these values down into the conning tower.
Also I'm not sure wether a TBT actually had build in stadimeter as in SH4.
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