It's really hard to be a firefighter. It's also extremelly dangerous. The emergency alarm can ring at any moment. It means that you have to dress up quickly and drive with other firefighters to the place where the fire has started. When you'll arrive the battle between you and fire beggins. You need to survive in it and also save other people if it's nessesary. Then you need to drive back to the fire station and have a short rest.
You see that profession of firefighter is very importaint as well as dangerous.
Ну, как-то так...