This is just for those who might have a basic idea of how specializations work, but aren’t totally sure (like me before I hit level 50).
You all probably know that you pick a specialization once you hit 50. For those with standard edition, you will have only Operator and Wetwork to choose from. There are a total of 6 (or maybe it was 8) that will be released over time (from what I hear). Each specialization will give you a few specialization-unique emblems, visor color, armor set, and armor mod, of which will be unlocked over the next ten level. When you hit level 50, it does not force you to immediatly pick a specialization, but you will not earn experience if you don’t…meaning that if the specialization you want is not out yet, and you don’t want to go through another ten level before getting it, it IS possible to just wait for it to be released. Like I said though, you won’t be earning any experience in the meantime.
For more info, use this link: http://www.ign.com/wikis/halo-4/Specializations
Use the tabs on the left to find out more info about specialization-unique unlocks.
I picked Operator, so I can tell you right now that you get an armor mod called Wheelman, which sounds like it increases durability of vehicles for you, and possibly reduces the time it’s stunned from EMPs. The emblem you unlock is a “Hog Tire”, which for all you pokemon fans, can be customized to look like a pokeball :}