Infinity Ward: Call of Duty is like a sport

Call of Duty's popularity amongst competitive gamers means it's like a sport, which is why the formula doesn't change too much.

That's according to Infinity Ward executive producer Mark Rubin, who claims that they can't change the Call of Duty franchise too much in case it angers hardcore players.

"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," he told OXM.

"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 said that Infinity Ward is always trying to add new things here and there to the Call of Duty brand, but the core game will always stay the same.

"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.

"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."