There was an article on Gamasutra several years ago.....
Had to do some digging, but after 15 minutes of various searches I found it. From 2007.
Call of Duty: Finest Hour -- The Contract
When that contract went sour, Activision and Spark had a lawsuit, and the court released their contract. Several game industry lawyers reviewed the contract.
I think you will find the article's pages 6, 7, 12, and 13 are the most interesting for your question.
Personally I found the entire contract and the analysis a fascinating read.