Well before you try and make a japanese campaign, you have to have at the very least a japanese submarine. They had the greatest variety of sub types of all nations, with some quite interresting : for instance the Jyunsen B had a top surface speed of 23,5 kts and 8 submerged, that's not bad at all now is it ?
Well, the sub's well under way, and if you want to you can download the latest version which includes (not for long) a type IX hull but had a
real IJN tower. The good thing about the add-on is that it gave us units that are considered friendly by the japs, plus a scout plane, so yes maybe they should've made a couple drivable IJN subs instead of dummies, but hey ! we're getting there ! go see my thread about the Jyunsen B
