Holy shit, Hachina coming in with the final hour save! He's disguised himself look like Voja too, probably to sneak into the control room and the rest of the ship easily.
@catx3 I think Hachina was going to explain the position of the last one by bringing up the A1 miss. Personally I think if there were 2 subs in A1, Gakuto would have for sure hit one of them even with the X being low. I believe the last sub to either be J1, for the same reasoning, or
A10/J10 bottom quadrant just because why would Gakuto specifically kneel downward to hit the bottom part, so it's essentially the same trap as the A1, but in the opposite vein.
Edit: Wouldn't actually be A10 because Hachina would have pointed it out long ago.
All that said, I look forward to what Gakuto ends up doing with his volleys!