The best thing about Call of Duty 4 (the game that started all this nonsense) was that it was supposed to be scary. Everything in it, AC-130 level in particular, was cold, clinical and alien. The U.S. was portrayed as it actually is, an overzealous warmongering force that has bitten off more than it can chew. Meanwhile, as Yahtzee has pointed out, the British troops come off as borderline psychotic. Almost every setpiece was special because, until that point, wargames were about putting you face-first into the horrors of war, while COD4 put you in situations where YOU were the one killing off enemy troops like plastic army men, totally desensitized to their plight. So when the tables finally turned, and players were presented with a nuke right in their face, it was one of the most shocking video game moments ever. The bloody spectacle was memorable because it contrasted with our modern clean, detached perspective on warfare that the game also portrayed.