Spazmo
Erudite
(Theory)
I don't know *that* much about code but I can bet you anything that the reason that the HotU OC doesn't have MP is that in order to have TWO henchman they tricked the game into thinking that you'r playing a mulitplayer game with 2 people and one henchman
This wouldn't surprise me. BioWare is notorious for coding themselves into corners. Remember all the shit BIS had to pull in the IE to get it to work for all the stuff they wanted to do in IWD2? Remember how all prestige classes have to cast spells as spell-like abilities for some stupid coding reason? I imagine the source code for NWN consists of a few lines of good stuff and then a few reams of workarounds and slapdash fixes. I get the image of NWN being some huge, steam-driven monstrosity being held together by bubblegum and rubber bands.