Maybe alot of you know this already, but for those who have trouble with halo being slow or choppy for the pc can try this... on your shortcut to halo.exe, not the actuall halo.exe, right click it then click properties. About halfway down there is a box called target. at the end of target after the quotes as well type in:
-useff -width 640 Then i go into the video options in halo set both details to high, and high decals and it works flawlessly, hopefully it'll help you too
