Infinity Wards Mark Rubin mener at Call of Duty er at betragte som en sport, og at spillets grundelementer derfor ikke kan ændres. Det siger han i et interview med OXM.
"There is the obvious truth that if this were football, and next year they decided we only want seven players a side and you can use your hands, I don't think people would want to go to many of those games. So we can't change too many of the core rules, and the core rules are really simple. You're a player, it's in first-person, you have a weapon in your hand and you run around shooting other people."
Rubin mener samtidigt at der stadig er rigeligt med plads til nye ideer og kreative løsninger.
"We can play a lot with the outside of how that works, and it's things like character customisation, making the movement through that world better, making the world itself more interesting, adding the new modes, adding the new dynamic maps."
"So there's still I think a lot to do. Anytime we ship a game - and this is a non-Call of Duty statement, this is [applicable to] any dev you've ever talked to - is there's always a ton of features they wish they could have gotten to, before they shipped. So I think we'll always be able to bring new and interesting stuff. It's literally that we're just trying to make a better game than we made last time."
"Giving people new content, new ways to play, Squads is a really new way to play that I think people are going to find really interesting, because it's different to anything we've ever tried to do in Call of Duty... I think we're going to continue that trend."
Det lyder altså til at Call of Duty forbliver Call of Duty.