While I don't particularly like CoD, I disagree with this statement. I think they are as easy or as difficult for every individual based on their individual abilities. Being able to spot an enemy and shoot first is as much a skill as knowing the map and choosing your location. There's plenty of arguements either way, CoD players argue that Halo players just jumping bean about, while Halo players argue that it takes no skill to have, what was it someone called it? 'Twitch' reflexes? Something to that effect.
Both are skill sets that not everyone has, that doesn't make one game more skilled than the other. They're just different. But that doesn't stop people from harping on about how 'X' game requires more skill, usually because they play that game and want to imply they are skilled at something, rather than being skilled at nothing. Like people who argue which is better, console or PC gaming. Halo vs CoD and Console vs PC, civil wars that are sooo important.
GamerTag: TheKiriyama Currently Playing: Halo 4, Minecraft, Battlefield 3, Borderlands 2, Dark Souls