In my (albeit limited) experience, Call of Duty MP games are much faster than the gameplay in Battlefield. Also, I love the way you don't actually have to be good at shooters to get a good score in Battlefield games, if you support your team. :)
The first time Humanity went to the moon, we figure 8'd around the moon, but it was not the moon that we discovered. When we saw Earth appear over the surface of the moon, it was one of the first times we saw Earth as a planet, and not our home.