Use 3D unity to develop an initial simple scene with fire in a small building (house) and a firefighter with a clear face expression.
An XML script can be integrated to change the face expression of the firefighter depending on the situation.
Example of the script
<Firefighter ID = 1>
<Expression Name = happy, Expression File=[url removed, login to view]>
</Firefighter ID = 1>
Firefighter is happy when the fire is gone. The file [url removed, login to view] contain the 3D content of the face expression of the firefighter