If you didn’t buy the collector’s edition of Halo Wars, you’ll be happy to know that the Mythic Map Pack for Halo 3 is now available on the Xbox Live Marketplace for 800 Microsoft Points ($10USD). The map pack includes three new maps: Sandbox, Assembly and Orbital. I personally haven’t played the new maps yet, but you can bet your ass I’ll be on Halo 3 playing them today.