Not sure, but I think he just doesn't know the main weapons used by some of the other nationalities,
USA would get the Garand, the Thompson, and the M1911
Brits would get the Lee Enfield, and the Sten (not sure about their sidearms)
Germans would get the K98, Mp40, and a Luger
Russians would get the Nagant, the PPSh-41, and the Tokarev TT-30
Japanese would carry an Type 99, Type 100/44, and a Nambu pistol
Italians would carry a Carrcano Mod 91/38, Beretta Model 38, and a Beretta M 1935
Bazookas are a bad idea. Infintry would be almost impossible to see in AH, and would essentially end all tank operations.
But past that, -1. Not right now anyway, and would do better to keep thing simple at first, and add on later.