Call of Duty: United Offensive is the expansion pack for Call of Duty. It was released on September 14, 2004 and developed by Gray Matter Interactive, with contributions from Pi Studios, and published by Activision. Call of Duty: United Offensive is exclusive to the PC. Take the role of American, British, and Russian soldiers in some of the most climactic battles of World War II, including the Battle of the Bulge, the invasion of Sicily, and the Battle of Kursk. Russian Campaign Missions 00:01:50 - Mission 1 - Trenches 00:19:01 - Mission 2 - Ponyri 00:38:55 - Mission 3 - Kursk 00:50:10 - Mission 4 - Kharkov Outskirts 01:07:45 - Mission 5 - Kharkov Station 01:29:00 - Credits FOLLOW ME ON SOCIAL MEDIA! ⊳ Facebook: / therazorultra ⊳ Twitter: / therazorultra ⊳ Twitch: / therazorultra