While Call of Duty: WW2 might be a commercial success, developer Sledgehammer originally wanted to make a follow-up to 2014’s Advanced Warfare.
“Sledgehammer wanted to make Advanced Warfare 2," said Activision CEO Eric Hirshberg in an interview with Newsweek. It’s unclear if the shift to a World War 2 game was because Activision forbade them from tackling another futuristic entry in the shooter franchise.
"We knew they would become historians, that they would tackle it with authenticity, give it tremendous care, and we also knew they would capture the unspeakable scale of World War II."
The change seems to have paid off though; launch sales for WW2 are double those of Infinite Warfare. According to a press release, company estimates put sell-through at over $500 million USD worldwide.