In Black Ops II the ‘Create a Class’ feature has been completely overhauled and re-designed to make for a much more customisable Multiplayer experience.
The Perks are an area which have also changed for the better! Read through them carefully since a few of them are similar to Call of Duty games but with subtle differences which greatly change how you’ll use them.
Also check out at the bottom of the Perk list the list of Wildcards which are available for each class. Wildcards can be thought of as an extra addition to your existing class but more expensive as each one unlock the ability to add something extra, be it an extra perk from slot one or a third attachment for your weapon.
Check out the list below of all the Perks in Black Ops II: