Those files have to match the LukMap files in that directory, so you can't just use the higher resolution "2" file as is. In your image viewer the MapTex.tga file looks blurred, or only within the campaign map engine?
Blurred only in game engine, in photoshop not blured, but have very bad resolution.
Download and open in "Windows Photo Viewer" and zoom in, google chrome blurred pic too.
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