The fact is they're both competing in the same market. They're seen by their players and developers as rival games of sorts. The games are both military action shooters and both FPS' trying to out do each other in some way. While they stand similarly they still have to compete with differences. IN MY OPINION, Call of Duty takes the crown for the easy game to jump into. It's fast paced, simple, and fun. You don't need to rely on others no matter what game type you play and can back out of it without harming anybody on your team (unless they just blatantly suck at an FPS or have 1 or 2/6 players on the team left). Battlefield plays at different paces depending on the game types. From what I've played, it can differ from a super slow 30 minute match to some quick, run & gun, and capture objective in 10 minutes thing. Surely none of these games take some type of REAL skill but "skill" in the way I'm speaking of it is all a matter of difficulty based on the game types, team play, and matter of further understanding which I feel Call of Duty lacks and makes up for in a fun, arcade shooter.