[DRG]

The numbers used for "steel" armour in the game are EQUIVALENCY VALUES that estimate the accumulated effect of the various armour types that make up the hull plus the effect of the slope of the armour and how all that would add up as a defence against a solid shot penetrator.

Steel, of course, was the only material used in armoured vehicles at the start of the time period the game covers but that all changed with the introduction of new armour types that resist solid shot more effectively without the need for thicker, heavier steel but "Steel" is the term used in the game to cover armour values that counter solid shot penetrators but the days of it being solid steel are long gone by. We thought everyone understood that. Apparently, we were wrong.

Armour HEAT values represent the same effects on a shaped charge warhead in the same way