That makes more sense, but in that case you can literally just say everything should function exactly the way it currently does on P99 except for the first and last bullets, rephrased as such:
- non-see invis mobs flagged AggroPC should con scowling to anyone with invis, regardless of faction, but shouldn't actually attack a la Oasis crocodiles or EK crag spiders.
- see invis mobs flagged AggroPC should con scowling to anyone with invis, regardless of faction, and should actually attack.
And then there's the problem of which mobs are flagged, and which aren't. So far we have giants and spectres.