damagedistance dont work right?

[Lorban90]

hi got a problem.... my npcs dont work at ranged fight. they walk with a pistol so close it seems he want to hug you.
dont know what i have done wrong.

damagedistance 15
attackdistance 15
follow true
radius 15
maxdistance 15
hostile true
defend true
allowsit true
needsAmmo false
fireduration 1
hitchance 75