Question: Who created the film franchise that became basis for the crossover science fiction first-person shooter computer game franchise developed by Rebellion Developments along with "Alien?" 
Sentence (from "Halo (series)"): The central focus of the franchise builds off the experiences of Master Chief John-117, one of a group of supersoldiers codenamed Spartans, and his artificial intelligence (AI) companion, Cortana.
Relevant evidence: No