You'll get early access to content, free DLC and exclusive skins and emblems.
Limited edition versions of games range from the cool to the ridiculous and the 'Halo 4' pack seems to sit somewhere in between. If anything, it seems to be lacking in exclusives, opting instead for contend delivered early.
The limited edition version of the game will run you $99 and includes access to three upcoming DLC packs and six multiplayer specializations, both of which will be available to the general public in time. You'll find some exclusive looks for your Assault Rifle and armor and an Xbox LIVE Avatar prop and outfit.
Finally, you'll be getting a 90 minute live-action Halo video and a UNSC Infantry Briefing Packet, which includes blueprints, schematics and insight into the Spartans.