<
EquipmentUpgradeDef
>
<
SelectionCriterion
>MaximizeBest</
SelectionCriterion
>
<
ComparisonAttribute
>UnitStat_Attack_Pierce</
ComparisonAttribute
>
<
WeaponUpgradeType
>Bow</
WeaponUpgradeType
>
<
EquipmentSlot
>Weapon</
EquipmentSlot
>
<
EquipmentSlot
>Defense</
EquipmentSlot
>
<
ForUpgradeActionOnly
>1</
ForUpgradeActionOnly
>
</
EquipmentUpgradeDef
>
Find the above tag in your xml files.
Edit the files to read
<EquipmentUpgradeDef>
<SelectionCriterion>MaximizeSum</SelectionCriterion>
<ComparisonAttribute>UnitStat_Attack_Pierce</ComparisonAttribute>
<ComparisonAttribute>UnitStat_Attack_Fire</ComparisonAttribute>
<ComparisonAttribute>UnitStat_Attack_Cold</ComparisonAttribute>
<ComparisonAttribute>UnitStat_Attack_Lightning</ComparisonAttribute>
<ComparisonAttribute>UnitStat_Attack_Poison</ComparisonAttribute>
<WeaponUpgradeType>Bow</WeaponUpgradeType>
<EquipmentSlot>Weapon</EquipmentSlot>
<EquipmentSlot>Defense</EquipmentSlot>
<ForUpgradeActionOnly>1</ForUpgradeActionOnly>
</EquipmentUpgradeDef>
Once you made this change you will have to start a new game and then you will be able to upgrade your units as you would like.