Similar to how it is done in City of Angels, would a dispatch center with pre-filled "run cards" (as we call it in real life) be possible? For example.. you click on the dispatcher ped to open up the menu, and it has "FIRE ALARM", "RESIDENTIAL FIRE", "COMMERCIAL FIRE", and so on in the button menu. From there, if you were to click "FIRE ALARM", it would tone out the volunteers, and it requests X apparatus. In real life at my firehouse our run card for any fire alarm (residential or commercial) is an Engine Company, Truck Company, and a chief. Normally the assignment would be held to the engine if the truck co. isn't needed but that is how it works for us.
Another example. Residential Structure Fires for us will call for 3 engines, 2 trucks, and a rescue for rapid intervention along with the chief. All other chiefs can respond of course, but they don't get immediately attached in CAD.
Just a thought. Not sure the complexity of this. Something like it has already been done in West Falls, so just a concept. This is what our small town of 2000 uses. Could fit well