Is it possible to edit combat damage in air warfare?

[Trigan Emperor]

Say, if one wanted a bomber to inflict half as much damage to a land unit and receive half as much damage in return. Or make air-to-air combat half as deadly.

These files in GlobalDefines might be relevant?

        <Row Name="AIR_STRIKE_SAME_STRENGTH_MIN_DEFENSE_DAMAGE">
            <Value>2400</Value>
        </Row>
        <!-- Note: this will actually produce something between 0.00 and the listed number in damage -->
        <Row Name="AIR_STRIKE_SAME_STRENGTH_POSSIBLE_EXTRA_DEFENSE_DAMAGE">
            <Value>1200</Value>
        </Row>
        <Row Name="INTERCEPTION_SAME_STRENGTH_MIN_DAMAGE">
            <Value>2400</Value>
        </Row>
        <!-- Note: this will actually produce something between 0.00 and the listed number in damage -->
        <Row Name="INTERCEPTION_SAME_STRENGTH_POSSIBLE_EXTRA_DAMAGE">
            <Value>1200</Value>
        </Row>
        <Row Name="AIR_SWEEP_INTERCEPTION_DAMAGE_MOD">
            <Value>0</Value>

 

[Trigan Emperor]

Having done some testing, it looks like its the first four of those. I think that the Air Strike values look to be related to the damage an aircraft receives from the ground, with the damage they mete being governed by their Ranged Strength.

 

[Trigan Emperor]

I've hit a metaphorical brick wall with this. While the amount of Air-to-Ground attack damage can be modified through changing Ranged Strength, and the Air-to-Ground defense damage can be modified by changing the two AIR_STRIKE values in the Code box above, Air-to-Air combat appears to be governed by the ATTACK_SAME_STRENGTH_MIN_DAMAGE and _EXTRA DAMAGE values. These are the values that govern melee unit damage, so changing this would change combat for all melee units. There are values that I had hoped would be relevant - INTERCEPTION_SAME_STRENGTH_MIN_DAMAGE & _EXTRA DAMAGE as well as AIR_SWEEP_INTERCEPTION_DAMAGE_MOD - but I haven't managed to find any effect these values have on anything.

 

[Trigan Emperor]

I've found a promotion available to bombers called "Evasion" that looks as if it has potential as it gives an "InterceptionDefenseDamageModifier". Here's the code:

        <Row>
            <Type>PROMOTION_EVASION</Type>
            <Description>TXT_KEY_PROMOTION_EVASION</Description>
            <Help>TXT_KEY_PROMOTION_EVASION_HELP</Help>
            <Sound>AS2D_IF_LEVELUP</Sound>
            <PromotionPrereqOr1>PROMOTION_AIR_SIEGE_2</PromotionPrereqOr1>
            <PromotionPrereqOr2>PROMOTION_BOMBARDMENT_2</PromotionPrereqOr2>
            <OrderPriority>7</OrderPriority>
            <InterceptionDefenseDamageModifier>-50</InterceptionDefenseDamageModifier>
            <PortraitIndex>23</PortraitIndex>
            <IconAtlas>PROMOTION_ATLAS</IconAtlas>
            <PediaType>PEDIA_AIR</PediaType>
            <PediaEntry>TXT_KEY_PROMOTION_EVASION</PediaEntry>
        </Row>

I tried giving it to Fighter units, using this code in the Unit_FreePromotions section of CIV5Units, but it hasn't appeared in-game.

    <Unit_FreePromotions>
        <Row>
            <UnitType>UNIT_FIGHTER</UnitType>
            <PromotionType>PROMOTION_EVASION</PromotionType>
        </Row>

EDIT: I managed to get the Evasion promotion appearing in the game for Fighters by adding the following code, but it doesn't appear to have any effect on Air-to-Air combat results.

    <UnitPromotions_UnitCombats>
        <Row>
            <PromotionType>PROMOTION_EVASION</PromotionType>
            <UnitCombatType>UNITCOMBAT_FIGHTER</UnitCombatType>
        </Row>