You may need a xlive.dll file (included in many community versions) to bypass the dead login service.
Ensure it is from a reputable community source like ModDB or PCGamingWiki . File: Universe.At War.Earth.Assault.zip ...
I can provide specific installation steps based on what is inside that zip! You may need a xlive
Right-click the .exe and select "Run as Administrator" to avoid save-game errors. 🛸 Key Game Features File: Universe.At War.Earth.Assault.zip ...