RTS_camera(upbge 0.2.5)

I`ve downloaded many templates from this forum, now I have something. 

Modificated end file from old tutorial by Adrian Netlis. Python&Bricks, made on upbge 0.2.5.
Fell free to use it. Fell more free to improove it.
The file contains camera set which allows you to move, rotate and zoom the camera. Additionaly camera keeps constant distance above surface.
Steering:
Move - mouse movement
Rotate - keyboard “Q” and “E”
Zoom - mouse wheel
Link below:
RTS_Camera_Template.blend (622.0 KB)