I only use coins to purchase Fire Stations. I lost track of how many I am at. It is near 1500 fire stations. For the most part I am realistic. Station Locations are all exact location as current, Future or former Fire stations to the best of my research. However. Some stations do not have in them what they have in real life. Personally I find this impossible. Minnesota is my largest set up. There are 866 fire departments (Departments not stations) in Minnesota. Out of those there are only 5 official real hazmat teams covering the entire state. Mainly in the twin cities. Sure some of the larger departments have a small set up for hazmat but if anything big comes in they request the closest hazmat team be started. So in alot of my just a tad bit bigger cities I do have hazmat teams.
I also use all multi purpose units. Quints, Rescue Engines, and pumper tankers. That really extremely helps. In my major cities any of the stand along companies are either a quint or pumper tanker. Any of the double house companies are rescue engine and pumper tanker or rescue engine, quint. Since I am not sure I am going to do a wildland set up. I have recently just started making some of my pumper tankers brush trucks in rural areas.
In real life I know there is not an ambulance at every fire station in Minnesota. But there is ambulance coverage. So in my set up I am just placing 1 als medic rig at every fire station. With the mass Cass units and EMS chief at most of my hospitals.
Mobile commands seem to be a thing of the past atleast in Minnesota they are a dying breed. But again in my setup I placed them at every little bit larger set up. If I only placed them at cities that officially had a MCV I would have some cities with a 7-8 hour response time for a MCV.