The Black Ops 2 season pass gives you access to four epic DLC map packs and the Nuketown Zombies map. Usually, these benifits come with a one time fee, but with Points2shop you can get the Black Ops 2 season pass, along with all the Black Ops 2 map packs for free! All you have to do is register with Points2shop and then complete various free offers to earn points towards your free Black Ops 2 season pass.
Still not convinced? Here's how it works in more detail:
1) Register - No messing around with Credit Card details and the like, just fill in email and password and you're away. You can even just sign in with your social media account!
3) Spend you points on anything you want!