it is very difficult to find the kind of data on japanese tanks that is available for u.s., german, russian and british tanks...i think french armor is better documented.
of the japanese tanks i could find data on, the main guns ranged from 37mm to 75mm...37mm was primarily used on the light tanks and tankettes, some medium tanks also...50mm and 75mm was rare.
the armor on all of them was light compared to other tanks...on the light tanks and tankettes, a .50 cal with ap ammo could chew them up...i can only speculate that it's because until they messed with the u.s. and russia, no other country had any real tanks to go against them.
imo, if you're going to bring something in based on it's historical significance in war to the country that used it, the japanese tanks belong in ah as much as anything else, like the b-239...assuming the proper data can be found.
