Also, is the ITALERI "Katyusha" a "Sovietized" 2.5 ton 6x6 International?[/quote]
I think the front grill is different. I have asked myself that same question many times. Indeed I have thought; could I westernize the "Katyusha" into an International Deuce for the Marines?
As yet have not found all the exact answers.
This is as far as I have ever gotten with that experiment:

Halfway through I discovered that the International cab sits about 5" higher and the hood has more of a sloped rake to it. I have considering starting again or trying to break this one apart to make the necessary corrections but right now, sorry to say, it is a half built shelf queen.