edit:
ok, so far I have just ended up deleting the player.dff and player.txd, and i then added the one's from the halo download in, then I rebuilt the archive. So when I went to try out the player model, the yellow textures arn't on the helmet like it shows in the picture on this site, and on gtagaming.com, and suggestions?
(o yeah, and BEFORE i started playing the game, I was able to change the resolution in on the main menu, unlike SA, where you can change it as you play.)