Hi I have downloaded a addon police car and fire engines  and have added them to the game. However I can not get them to respond to pursuits or fires. I know that this involves editing dispatch.meta. I have looked everyware for how to edit this file to get them to spawn but I can not figure it out. If any one knows how to do this please let me know. 

Only the "firetruk" model can be used for fire dispatch (hardcoded or tucked away in still-encrypted files) as far as I know.

As for police, just add the new model to the various vehicle sets you want it in, or make a new set and add it to the dispatch sets.

Thanks that is what I needed to know.