Can someone explain specializations to me?

Hi, I’m a bit confused about specializations in Halo 4. Not what kind of abilities and armor they include but stuff like release dates. Like today, I know today is supposed to involve specializations or something because I watched the trailer for it and at the end it said play by Nov 20 to receive 6 specializations but do you have to be level 50 to get them? Are they expired today? Will I be able to get them in the future? I’m so confused right now so if someone can brighten me up and give me a good explanation about what the hell is going on with these specializations that would be great. Thanks

-Gidy

You will recieve them sometime between 21st and the 30th of this month the 20th was the deadline for being eligible for the specializations. Once your level 50 or 70 you can access a new specialization.

Once you reach lvl SR-50, you can chose a specailization. For those with the Limited edition have acess to all 8? I think. For those without it’s only wetwork and operator. You chose one, ie wetwork, and every lvl up to 60 will grant you somthing, helemts, camo, armour mods, etc…, Once you reach 60, aka 10 lvls in that speacilization, you’ll chose your next one, and so-on. So every 10 lvls will allow you to change.

http://www.examiner.com/article/halo-4-specialization-codes-will-arrive-by-start-of-december