Today, I did something I didn’t think I would end up doing this year. Like millions of other gamers around the world, I went into a shop and bought Call of Duty: Black Ops. Why is this strange? Well, it isn’t really, but up until today I’d managed to suppress any desire whatsoever to play Activision’s latest blockbuster. Not for any particular reason. Don’t get me wrong, there are countless reasons why any one person would wish …