You could alter the NPCs' default on perception script and run a multi-step check:
if the creature perceived is a PC AND
if the creature perceived is an elf AND
if the creature perceived has "Drow" (or "drow") as a subrace AND
if the NPC is of non-evil alignment
THEN set creature perceived as temporary enemy and attack
Using the default perception script should make it automatically work with any NPC that also uses that script (which should be any not already running a custom perception script). No need to mess with factions.
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Modifié par The Amethyst Dragon, 03 novembre 2010 - 07:26 .