Call of Duty: Combined Forces

Call of Duty: Combined Forces was the concept of a sequel to Call of Duty: Finest Hour that was pitched to Activision by Spark Unlimited after their completion of Finest Hour. Because the game was projected to take $10.5 million in funding from Activision to complete (Spark Unlimited's first game was only supposed to take $2 million to create but took over $8 million by the end after legal encounters with Electronic Arts in 2003 and other production problems that arose afterward) and "the proposal seemed to describe a game that would be more of an expansion pack rather than a wholly new experience", Activision rejected the proposal and ended their contract with Spark Unlimited.