Please note that this week will be on Xbox Live some interesting discounts in respect of the FPS series Call of Duty. The content will be discounted by 50% for all the DLC for World at War , Modern Warfare 1 , 2 Modern Warfare and the various map pack for Call of Duty 2 and Call of Duty 3 . The full game Xbox Live Arcade Classic Call of Duty , you'll find it at a cost of 600 Microsoft Points.