WW2 tanks typically had a main gun and one or more machine guns. How were they used in combination?
Most people don’t realise that although officially neutral Spain had an active part in WW2 in the form of the Blue Division, otherwise known as the Spanish Volunteer Division, Division Azul, or by its official German title of the 250th Infantry Division of the Wehrmacht. Individual Spaniards were also involved on both sides during WWII, often in quite large numbers. In a few cases these individuals were collected into units.
I’ve lumped all sorts of tidbits in here.