Robot FPSTutorial enemy AI problem

Hi ! I have added robot of FPS Tutorial in boot camp demo as an enemy , I am using the same enemy AI script of FPS Tutorial . All is working fine like robot animations and shooting , except its range .It only shoots on soldier (player) when it gets too closer to robot . I want to set its range so it works efficiently.I have tried to change range values but it still does not work . Can any on help ?

(What I am thinking is that , it is because I scaled robot too much when I added it into boot camp , is this can also be the issue ? )

You go into AI script and adjust your attack and shoot range!

I have not used the FPS Tutorial or the boot camp demo but I may be able to help. Can you please post the coding?