If This worked for you please give it a "thumb up" it would help out a lot Thanks :)
Just for signing up you get free $2.50! Free Black Ops Retaliation/Escalation Map Pack (Retaliation for XBOX and PS3)
1. Sign up on the website: http://tinyurl.com/2wrb33b

2. Complete registration and confirm your email address (Dont forget to check your junk-mail if you dont see it)

3. Do some offers, play games, win lottery draws, join teams, win contests, and a lot more to get points/cash

4. Get enough points to get Microsoft Points or PSN Codes or whatever you wish (there is a lot more stuff you can get on there besides them)

5. Redeem your Microsoft Points or PSN Codes and get the map pack!

Enjoy your FREE Retaliation Map Pack for Black Ops! (Xbox 360 and PS3) (or whatever else you would like)

http://free-map-packs.info/