the Bard formerly known as the Bard
Here's my idea of what Doom3 varied enemy intellegence should be like......(Assuming all the listed monsters make it into doom3)
First you should have the easier more common monsters (riflers, shotgunners, demons, imps, spectres, chaingunners, lost souls) should be very dumb and should act as constant attackers (basically keep them the way they always have been). There should be TONS of these guys so it still seems like a DooM game.
Then, would be the next level of intelligence (Mancubi, Revenants, Cyberdemons). I didn't exactly see the cyberdemon being a genius. I think these guys should make showings in early levels and be very common in later ones. They would still pretty much do nothing but attack, but they will know when to run, hide, or try a last resort manuever.
The next level would be made up of cacodemons, pain elementals, barons, and knights. These would be "intelligent" demons that could do cool things like try to use weaker monsters as human(demon?) shields as they attacked or interacting with the environment, like throwing a torch at you or hiding a valuable item(like a key) from you.
Finally come arachnotrons and spiderminds, since all they are is a brain, i figure they must be pretty smart. These guys should also interact with the level like the previous stage of intelligence, but should also be able to trick you, or make traps, or something to that effect.
Tell me what you think of my ideas.