Obviously this wouldn't be called "Righteous Fury," as it does not reflect the Emperor's favor, but it would count as a critical hit none the less.
I had a player fight me tooth and nail that the horde he was involved against should not be able to have rolled extra damage after rolling a natural ten for damage against him.
My argument is that it is GM discretion who can and does get to score criticals. In an effort to make the game more challenging, I have allowed my enemies to do so.
Pg. 245 of the CRB was brought up but it does not specifically relegate critical attacks to the players only.
Edited by pearldrum1, 22 February 2014 - 08:27 PM.