Whenever I encountered a bear, the encounter itself ended in my death, because apparently bears in Unturned are able to sneak up on you like a cat. I did research their speed in wild nature and found out that they do run faster than horses. Or at least the grizzly bear can do so for a short distance. However, if it is possible could one add a louder running noise to them in the game, reduce their damage, their detection radius or completely remove them? Since, it is not really realistic for a ninja bear to be running around in the open world. I believe these specimen live  in Chernarus. Unless he was a relative of the Teenage Ninja Turtles. Then it all makes  sense.