Originally I had all HART locations as they are in real life
I originally planned to have HART bases in HART locations but found that this was not viable due to the closest being an hour and half away from my main area at the moment. but instead I have the HART base in the closest NARU location instead, has helped, though I suspect i'll need to do the same soon, and find a good place to put a second NARU or HART Base in.
I've got most fire station set up mostly accurate (though still need to invest more to get it 100% right) but seems okay so far, Police and Para im not worrying about too much at this stage, but might in the future (Locations are right, just not unit comp)