On top of today's specialization details, 343 Industries has also given some more information on the Limited Edition, and the (somewhat unsurprising) revelation that the "War Games Map Pass" will be sold separately. The pass will go on sale for $24.99 on November 6, alongside Halo 4.
Previously only announced as part of the Limited Edition, this grants you three DLC packs, consisting of three maps apiece, for 15% off the cost of buying them separately. You'll also get two exclusive helmets and a Falcon emblem.
Then again, if you're going to pay $25 on top of a $60 game, you're already in the range of the $99 Limited Edition. 343 outlined the full line-up of goodies today too, which includes the pass, access to all the specializations, a "UNSC briefing packet," the Forward Unto Dawn special edition, and various digital content: Recruit and Prime armor, Prime weapon skin and emblem, Recruit Avatar armor, and a Cryo-Tube Avatar prop.