just me but have always liked different headgear on allied troops. steel helmets just makes them look all the same as uniforms and field gear the same issue like the idea of being able to tell troops apart.as said above in some theatres soft headgear was worn also like the idea of troops wearing 1908 webbing as well as 1937

There is as per my first post on this thread a good argument for at least two sets , as per the photo`s above, jungle and med , throw in heavy weapons and you have set three. I always quite liked the Airfix set because it almost ticks most boxed, even the size works with 1/72 as these guys are not tall.

Exactly. Also, there's at least a 4th possible set - a "Command" set if you will...and you can picture a Japanese officer handing over his katana sword in surrender to Gurkha officers in such a set as in the photo above.