Regarding this, couldn't air units have some form of 'penetration' factor to their attack (both land and naval) ?
For instance, being able to penetrate a tank armor is not the same as BB armor...
Or is this already taken into account somehow?
Malick
Indeed. Not everyone had armour piercing bombs (Italy) or a working aerial torpedo or any practical experience in anti-ship attacks. For the German Stuka, sinking a destroyer or potentially a light cruiser was feasible. But any seriously armoured deck needs an armour piercing bomb to get through it. The Italians were limited to torpedo attacks to have a realistic prospect of sinking anything large, and at least they had a working aerial torpedo and had been practicing dropping them for years. the Germans had neither in 1939, had to buy 1000 from the Italians, and did not start making their own until 1942 when the Japanese gave them their design.
Finding something in the open sea, hitting it when it is moving 20-plus knots, firing back to throw you off your aim, and then you hopefully have an effective weapon.
K