@Paulytnz:
to do that you would have to modify my DistrictsScenario_Districts.xml in several ways:
1.) delete the general updates
<Update>
<Where CostProgressionModel="COST_PROGRESSION_NUM_UNDER_AVG_PLUS_TECH" />
<Set CostProgressionModel="NO_COST_PROGRESSION" CostProgressionParam1="0" />
</Update>
<Update>
<Where CostProgressionModel="COST_PROGRESSION_GAME_PROGRESS" />
<Set CostProgressionModel="NO_COST_PROGRESSION" CostProgressionParam1="0" />
</Update>
2.) delete the entries for theatre and campus
<Update>
<Where DistrictType="DISTRICT_THEATER" />
<Set Cost="90" />
</Update>
<Update>
<Where DistrictType="DISTRICT_CAMPUS" />
<Set Cost="90" />
</Update>
3.) for each existing district entry in the xml file add another one for the costprogressionmodel.
The xml file will look like this
<Update>
<Where DistrictType="DISTRICT_HOLY_SITE" />
<Set Cost="90" />
</Update>
<Update>
<Where DistrictType="DISTRICT_HOLY_SITE" />
<Set CostProgressionModel="NO_COST_PROGRESSION" CostProgressionParam1="0" />
</Update>
<Update>
<Where DistrictType="DISTRICT_ENCAMPMENT" />
<Set Cost="90" />
</Update>
<Update>
<Where DistrictType="DISTRICT_ENCAMPMENT" />
<Set CostProgressionModel="NO_COST_PROGRESSION" CostProgressionParam1="0" />
</Update>
*continue with other districts here*