Description Activision has announced that Call of Duty - United Offensive has shipped to retail. The much anticipated expansion pack to last year's excellent Call of Duty has a clear cut job to do; to blast us all out of our seats. Grey Matter Studios, taking over from Infinity Ward, has to produce something truly remarkable if the title is to have an impact similar of that of the original CoD title.
United Offensive will add 13 new missions and 11 new multiplayer maps to the original CoD content, while each of the multiplayer maps can be played in one of three different modes, Domination, Capture the Flag or Base Assault.
