I did a Quick Look around to see what the Japanese had to offer against the other squads I had in mind on this post
I read up on the Teishin Shudan paratroopers or they can have another guards unit instead. Both would have 9 men equipped with type 100 early’s and then have the option to swap out the earlies for the late type 100’s. One of the 9 soldiers would also be an engineer.