How do you know? Any proof?
I don't beleive it entirely, MOHAA uses a Q3 engine but hugely revamped, still it does have to be such a drainer. I suspect lack of optimization. The game stutters too much on my comp in single player, it's just not fun.
Now games like Aquanox, THAT makes sense. You don't need AA in that game anyway, 1024*768 is enough to enjoy it smoothly and graphically.
--
For the first time, Hookers are hooked on Phonics!!