Purchase of Halo Wars Limited Edition comes with the following:

Halo Wars game disc inside a special metal two-sided case. Halo Wars: Genesis, a graphic novel and prequel to the game, based on the first military campaign against the Covenant. Halo 3: Mythic map pack, the new map pack which consists of: Assembly, Orbital, and Sandbox. They are included as a one time only code for you to use to get the maps from the Xbox Live marketplace for free. 6 Leader cards, which show information on all six UNSC and Covenant leaders (three leaders for each faction): Captain James Cutter, Sergeant John Forge, Professor Anders, the Prophet of Regret, The Arbiter and the Brute Army Commander. UNSC Spirit of Fire embroidered ship emblem patch. (It is actually a rubber emblem of the Spirit of Fire.) The Honor Guard Wraith, a special in-game item, used by the Honor Guard of the Covenant. A special, in-game item M12 Warthog LRV, painted in the exclusive Spirit of Fire variant and is only available to those that pre-ordered Halo Wars before the game's actual retail release dates. The Halo Wars Limited Edition from Gamestop, comes with a hint book for the second level of Halo Wars from the Prima Guide shipped with the game.