SketchFactor has put up a guide for Halo PC players, focusing on such key elements as knowing which game you're playing, CTF, Oddball, Race, or, heaven forfend, Body Cou... I mean, Slayer (F that). Our official copies have yet to arrive here at Rampancy, so we've had to make do with playing the PC demo, and from what I can tell, there are lots of people using CTF games on Blood Gulch as a stand-in for team slayer (not included in the demo). Also, it seems that one of Gearbox's strategies for getting people to buy the full version is to disallow players from turning off the Banshee in the demo; fully half the games on the demo servers sometimes are named "NO BANSHEES". Not that anyone pays attention to this.