Halo 3 MC for UT3

[DarkHalo003]

You'd need to test that to see, I honestly don't know.

XP or Vista?

I use XP. The graphics card I use is said to run Half-Life games on high settings, which seeing as how the graphics aren't bad at all in Halo, my graphics card isn't too much of the problem. My RAM is bad though. It's 388 Mb....