Is there a video game where you can act as a cop paramedic or firefighter and get calls and stuff

Yes, there is a game like that. It is GTA IV for pc, unfortunately you must mod the disc if you want to act as a cop or paramedic. It's a lengthy process but it will be worth it in the end. The modding program is called LCPDFR. Go check it out. I hoped this helps! :)