All told, there are about 10 missions planned for United Offensive, split across three campaigns. (There won't be a final bonus campaign tying everything together, as there was in Call of Duty.) The expansion will focus on different characters than the original game, although some familiar faces should appear from time to time. There's also some new multiplayer content being created for the expansion, including nine new multiplayer maps are being planned for release, as well as the addition of vehicle combat, allowing infantry and vehicles to fight side-by-side.