Ascension comes as part of the First Strike DLC which costs 1200 Microsoft Points. You can't get Ascension seperately / standalone.
Ascension 400
You can get the Map Pack for WAW for 1200 points, but not the Black Ops Zombie map
1600 Microsoft points.
5*100= 500 Microsoft points
1200 microsoft points
1200 points
1200 ms points
It costs 1600 Microsoft points. 1600 Microsoft points is equal to $20. You can buy points on your Xbox 360 or from a gift card (found in many locations, including Gamestop and most grocery stores).
usually 1600 points each
1600
1200
1200 Microsoft points (£10.20)