Smeeisqualityfoo has put up a nice little guide on Myth: TFL and Myth II: Soulblighter in the Underground forum at Bungie.net. For those not familiar with these RTS games originally developed by Bungie and then sold to Take Two Interactive at the time of the Microsoft buyout, it's a nice primer on all things Myth, plus a quick guide on where to get a copy and how to get it going.