The "Road Warriors" bonus is also incomplete. I kinda wanted to have that one for my trading empire.
<AbilityBonusOption InternalName = "RoadWarriorsBonus1">
<DisplayName>Road Warriors</DisplayName>
<Description>Caravans produce roads faster.</Description>
<Bonus>10</Bonus>
<Cost>7</Cost>
<GameModifier>
<ModType>Player</ModType>
<Attribute>AbilityBonus</Attribute>
<!--<StrVal>A_Invent</StrVal>-->
<Value>10.0</Value>
</GameModifier>
</AbilityBonusOption>
And yes, A_Health does not do anything at this point. That is what Death Magic is based upon. Perhaps there is another code that could be implemented instead like unitstat_health?