When you look at subs in naval clash, nearly every single sub uses mk2 torpedos. However mk2s are supposed to be worse than their more damaging counterpart, the mk3 torpedo. This is not the case for one reason. TDC on mk2s work for all tubes and for infinte shots. FireControl on mk3s works only for each tube (balanced) BUT you need to reset every time you fire and you need to wait for the tube to expire or hit. If you miss you have to wait around 20 seconds before the FireControl, can be reset. This is clearly what makes mk3 torps pretty terrible. A balanced buff would be to increase cost of FireControl by 500 or so but make it function the same as TDC (Don’t need to reset) and you need one sign per tube. I have not seen how good the mk3 damage is, maybe it also needs to be buffed.