That is because the tutorial has a bug.
I should fix it. The problem is that to make a UU appear, you also have to tell the Civilization that it has a UU, and what it replaces. It is data duplication I didn't expect. :/
I thought I'd mentioned the fix in the thread -- change in the (a copy, naturally) of XML/Civilizations/CIV4CivilizationInfos.xml in the viking entry
This:
to this:
and I think it'll be working. Let me know if it works, and I'll get around to patching the tutorial. 
I should fix it. The problem is that to make a UU appear, you also have to tell the Civilization that it has a UU, and what it replaces. It is data duplication I didn't expect. :/
I thought I'd mentioned the fix in the thread -- change in the (a copy, naturally) of XML/Civilizations/CIV4CivilizationInfos.xml in the viking entry
This:
Code:
<Units>
<Unit>
<UnitClassType>UNITCLASS_MACEMAN</UnitClassType>
<UnitType>UNIT_VIKING_BESERKER</UnitType>
</Unit>
</Units>
Code:
<Units>
<Unit>
<UnitClassType>UNITCLASS_AXEMAN</UnitClassType>
<UnitType>UNIT_VIKING_BESERKER</UnitType>
</Unit>
</Units>
