I am building VeryFire’s DKM H Class and am puzzled by two items. What are the two parts (G20 & G8) which when put together become “J” that is to be placed between the the forward and aft 10.5 CM AA guns? The “J” looks like a mini turret but it is to small to be a maned one. Seems to small to be for star shells. Perhaps it is used to throw lines out?

Second, part G-13 is a triple torpedo tube (there are two G-13’s) but nowhere do the instructions show where they are to be placed. (Not that torpedo tubes made any sense for this ship anyway)

Anyone know about either of these?