I'm very interested in hearing more about this. Not so much because I don't want to play with others, but I don't want to be trolled by others. Personally I really like the idea of having separate motivations for certain quests, but the idea of sabotaging each during battle sounds ridiculous to me.
I think simply the options are single-player with 4 characters you control each party member and role-play them as you would (be crazy or control them as intended by lariat)
OR
Have competitive type multi-player and and a non-competitive multi-player. Like where you can't sneak potions in my inventory or crush me in battle because I like playing as a dwarf! (probably the only person on earth who loves playing as dwarves).
