For one, the armour seems paper thin, even thinner armour than the Panzer II with its 20mm auto-cannon. Every time I’ve used it, it gets destroyed quite rapidly and it’s rare I manage to find success against enemy tanks. That aside, based on what I’m reading, the Ausf. B was a prototype from the late '30s that was pulled from service in 1940 along with several other early prototype models including the Ausf. D which was allegedly pulled from service soon after Poland, which of course occurred September 1939 and kicked off WWII. Operation Barbarossa (began summer 1941), which seems to be the general setting for the Moscow Campaign (Siege of Moscow began September 1941), may not have seen use of Ausf. B. The Ausf. F meanwhile was produced 1939-41, considered the first pass-produced Panzer, the closest being the Ausf. E which was only produced 1939 and less than 100 made. Between '39-41, the F had 450 produced. As for the B model seen in the Moscow Campaign… 10. 10 Ausf. B prototypes were produced. Ten. Saw some service in Poland, taken out of service 1940, USSR wasn’t invaded until halfway through 1941.
Ausf. Model A-C only has 15mm armour. D-G has double that at 30mm. Oh, also, only 15 C-model Panzers were produced. In total it appears as though 35 tanks were produced between the A-C models, which to me really puts a spotlight on the whole ‘prototype’ word that keeps popping up. The Panzer III Ausf. J is the most common Panzer model, sporting 50mm of armour (more than 3x that of the B-model seen on the Moscow Front, and indeed the J seems to be the last tank accessible for the Germans there) and the J-model began production in 1941. The Siege of Moscow took place into 1942 so it seems legitimate. Over 1500 J-models produced in 1941-42.
So yeah… do with that info what you will. The Panzer II Ausf. C seems to check out, lots of those produced, and the A/B models before it were almost identical but the C appears to be the most common of the lot so it’s a good light tank to include in the game. This Panzer III Ausf. B on the other hand appears to not be proper to include unless there’s gonna be a Polish front. So, what’s my suggestion? I dunno, don’t really have one, but I’m not stepping into another bloody 15mm-armoured Ausf.B tank and gonna wait until I unlock the 30mm armour Panzer III Ausf. E before I do anymore tanking in the Moscow campaign and definitely not doing any upgrading on any Panzer until I unlock the Panzer III Ausf. J, which was the most common Panzer.
Maybe others have found great success with that prototype B model, but I find it’s more suited to gunning down Polish cavalry than taking on Russian tanks or even the PTRD. Of course, besides the research I did this morning, I am in fact very ignorant to tanks and armour thickness and cannons and what not, so feel free to present rebuttals. My specialty is very much with smallarms; rifles, SMGs, pistols, and the like. Tanks, planes, those are only things I’ve been very recently taking interest in, and the reading I did on the Panzer III tanks today is probably the most research I’ve done on tanks in my entire life.