message: Cavalry receives bonus against Artillery and Howitzer
diff: <UnitClassType>UNITCLASS_ARTILLERY</UnitClassType>
  <iUnitClassMod>50</iUnitClassMod>
  </UnitClassAttackMod>
  + <UnitClassAttackMod>
  + <UnitClassType>UNITCLASS_HOWITZER</UnitClassType>
  + <iUnitClassMod>50</iUnitClassMod>
  + </UnitClassAttackMod>
  </UnitClassAttackMods>
  <iCultureGarrison>8</iCultureGarrison>
  <iAsset>3</iAsset>
  <UnitClassType>UNITCLASS_ARTILLERY</UnitClassType>
  <iUnitClassMod>50</iUnitClassMod>
  </UnitClassAttackMod>
  + <UnitClassAttackMod>
  + <UnitClassType>UNITCLASS_HOWITZER</UnitClassType>
  + <iUnitClassMod>50</iUnitClassMod>
  + </UnitClassAttackMod>
  </UnitClassAttackMods>
  <iCultureGarrison>8</iCultureGarrison>
  <iAsset>3</iAsset>
  