Hello I had a look at my giant spreadsheet again and found some more funny things, here they are
I looked at all the units that were size 0.
These are planes that are size 0 I think they might be bigger.
Hungary unit 286 WM-21 Solyom
Germany unit 408 He 46
Spain unit 467 He 46c Pava
Spain unit 309 He 46c Pava
Spain unit 418 He 46c Pava
Germany unit 407 He 46
Japanese unit 032 and 089 70mm Inf-Gun are size 1 but the other 12 70mm infantry guns that are the same gun are all size 0 and one of those is in the Japanese army. I can give a list of the other guns if you like. 70mm inf gun is way very small.
Italian unit 369 Para C/C 47L32para is size 1. but all the the other 47mm AT guns are size 0.
Germany unit 709 PzKw 740(r) is size 0 It might be bigger than that.
Pretty simple so far but then it got complicated again, with the forts. The shelter bunkers, caves, ammo bunkers are size 0. So I couldn't work out how some of the forts are size 0 but I thought about it a lot and is it because they are just very small targets like a slit that you have to hit otherwise it doesnt do anything.
But then I thought if thats it why aren't all the forts size 0 because they all have such thick walls if you dont hit them in the slit then nothing happens to them but of course they have to be bigger because the other ones are great big lumps of concrete which are as big as barns so they have to be big sizes so you can see them but hey ho not all of them. The Frenchy magino line forts are really turrets and they are really small but get really big size numbers when they are really just size 1 or 2, the Belgians have some as well. like unit numbers 059, 060, 061, 079, 085 for French and Belgians have 061.
I saw some countries dont have a 0 sized HMG they can be very good sometimes so it might be good if all the countries got one.