From the readme:
Code:
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V. USING MODIFIED FILES
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- To use the modified files create a batch file in your
Medieval II: Total War folder
- In the batch file add the following line
medieval2.exe --io.file_first
- NOTE: Due to a timestamp check, the following unpacked files will
cause the game to crash and must be deleted before the game is
launched:
data\descr_geography_new.txt
data\descr_geography_new.db
- Save the batch file and then launch Medieval II: Total War using the
newly created batch file.
You don't have to make a modfolder, but you do have to do that.