Battlefield liked to 'take the p*ss' out of Call of Duty, but it was a 'very healthy rivalry' that pushed DICE to do its own thing

As rivalries go, you don't get much bigger than Call of Duty versus Battlefield. Two of the largest, most expensive series around, both of them covering wars both past, present and future—of course there's going to be some competition.

David Goldfarb, who served as lead designer at DICE for Battlefield 3 and Bad Company 2, even found ways to throw some punches in the script.

"Even lines I wrote in Bad Company 2, they're in a chopper and Sweetwater says, “He’ll just send some special...