Most "Universe at War" zip files include the UAW Config Tool . Run this to set your resolution.
To help you get the game running perfectly, could you let me know: What are you using (Windows 10, 11, etc.)? Is this the full game or just a patch/update ? File: Universe.At War.Earth.Assault.zip ...
Features "Tactical Dynamics" where the terrain is permanently scarred by walker footsteps and weapons. Most "Universe at War" zip files include the UAW Config Tool