The Norway mass murderer used Modern Warfare 3 as "training"

The right-wing extremist Anders Behring Breivik's 1.500 pages long manifesto, is currently being read by law-enforcements. In it he mentiones his passion for video games in it he writes

          "I just bought Modern Warfare 2, the game. It is probably the best military simulator 

             out there and it's one of the hottest games this year. I see MW2 more as a part of my 

             training-simulation than anything else. I've still learned to love it though and especially 

             the multiplayer part is amazing. You can more or less completely simulate actual 

             operations." 

He used other games such as wow as a cover up for why he had been isolated for such a long time, and didn't answer the phone