I haven't played many PC games recently (due to my PC not being fast enough) so I'm way out of the loop. I do remember playing and completing the first Call of Duty game a few years ago, and I also played CoD 2 at a friend's house.
My brother has let me play one of the later CoD games (it was set on board a ship) and it seemed fun, so seeing as I now have a fairly decent PC I fancy giving them a bash - plus it's easier to play using mouse/keyboard than a controller.
So... which CoD games would you all recommend? And why did they stop putting numbers after the name, it makes it hard to figure out which is newer?