If you encounter issues:

  • Common installation methods:
  • Register map/missions (if required): some mods require editing a config file to add the map name. Follow the readme to add entries to mission lists or map selection files.
  • Set compatibility:
  • Launch the game: start Emergency 4, check for the Los Angeles map or mod content in scenarios/custom missions.
  • Test run: create a new game on the LA map and verify units, textures, and missions load properly.

  • A mod archive for MOD 315 usually includes:


    Some users report a minor hotfix (3.15b). This is optional and fixes a single bug with police helicopter pathing. You can find it on the same ModDB page as a separate file.


    Always back up: copy the entire Emergency 4 install folder and your Documents/Emergency 4 save folder before changing anything.


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