"Effective Against Armor"

[caravel]

Sorry I was a bit vague there. I understand that armour and defence are different stats. I've messed about with the unit prod file enough to know that. I was of course referring to the armour upgrades and not the base armour for the unit.

Ludens is correct, every point of armour [upgraded] gives a +1 defence bonus. This is the effect of armour [upgrades]. Every unit has a standard 1 point of base armour to start with, so I am not sure when the bonus vs armoured troops come into effect. All this bonus does is give the attacker +1 attack when he encounters "armoured" troops. The "missiles good vs armour" is also a bonus vs an armoured opponent, though, again, I'm not sure when an opponent is considered armoured? I would guess 2, as that is the result of the first level armour upgrade to a unit that starts with the base level 1 armour (unarmoured).

I also believe that the armour of the horse and the shield is not taken into account for armour piercing melee attacks. The attack bonus is the (target's armour - 1) / 2. So the more armour the greater the attack bonus. e.g. two different units (shield and horse armour removed first)

(8 - 1) / 2 = +3.5 attack bonus
(2 - 1) / 2 = +0.5 attack bonus

The more armour the more attack bonus for the AP attacker. I'm not sure how the fractions are dealt with, if at all. I believe they may be rounded up or down.