Well you see I saw a topic where Tinny was asking how to make his own dual pistol NPC and he had its class set at commando and it wasn't working. Then someone told him to put in the commando class and the reborn class so then he had both classes in his NPC file and he said that it worked (and behaved better Im assuming) that it worked better (it still didn't have dual pistols though). The point is that he gave it 2 classes and it behaved differently. I may be wrong because theres a good chance the game just picks one of the classes to use by random but I didn't get any error messages ingame talking about my NPC having more then one class.
Your auto-blocking is in vain! Only SP source code modification can allow you to block my desann-style attacks without being staggered now!