Question on adjusting unit upkeep cost

[dripdrip]

Hi everyone!
How can I adjust unit upkeep cost which is shown when mouse-hovering on the 'Unit Cost' section in Financial adviser screen? What file do I have to open and which part do I have to modify? What I want to do is to reduce the cost to half(or increase it to double)

 

[f1rpo]

Assets\XML\GameInfo\Civ4HandicapInfo.xml
There's iUnitCostPercent, which applies to human players, and iAIUnitCostPercent for the AI. As the AI normally plays on Noble difficulty, iUnitCostPercent on Noble also applies to the AI.
These modifiers are applied at the end of the unit cost computation.

INITIAL_GOLD_PER_UNIT in Assets\XML\GlobalDefines.xml could also be of interest to you. That's the gold paid per unit beyond the number of free units. The free unit limits can also be adjusted in GlobalDefines.xml.

And Civ4UnitInfos.xml allows setting an iExtraCost for individual unit types.

 

[dripdrip]

Your answer gave me what I was looking for and more! Thank you very much f1rpo.