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As far as creating a 4.09b1m "mods on" coop, It does not create a _ru.properties that I see.
If I look into renaming it, I have to add the .properties either way.
Although it does say the _ru file is a properties file.

Ok, I didn't know this was happening to you. In that case, I think you have a real problem here. A 'modded' version of the game should create an 'ru' Properties file when you make a mission from scratch.

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