Factions are only part of the answer here -- and not really even the most important part.
This Bioware tutorial will explain pretty much everything related to what you are trying to do. It's a bit complicated, but they have some great examples here of how the game uses several things together to create enemy behavior, exactly how and why creatures help each other out, and exactly how you can circumvent that default behavior.
Factions, Shouts and Attacking My Enemy
Modifié par Invisig0th, 07 décembre 2010 - 11:01 .