From: Raleigh, NC, USA
At this time, the "mittler" Panzer-Kompanien were only authorized 10 x Pz.IVs (KStN 1175 - 2 x Platoons of 4 Pz.IVs each + 2 x Pz.IVs and 5 x Pz.IIs in the HQ Platoon). That would be a total of 20 x Pz.IVs per 2-battalion Panzer-Regiment. This didn't change until early-1943, when all Pz.IIIs and Pz.IVs were redesignated as "mittler," and all Panzer Companies in the Panzer Divisions were reclassified as "mittler."
I don't think this is reflected in the Panzer Division ToEs in the game (ie we show too many Pz.IVs in the Panzer Division ToEs until January, 1943), so, if production is close to historical for 1941-early 1943, it's going to appear that there is a shortage of Pz.IVs, or the shortages will appear to be worse than they really were.
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