It may have taken 41 weeks since its release, but Activision and Infinity Ward’s Call of Duty: Modern Warfare 2 has become the highest selling video game in the United Kingdom’s history. The game charted on the Top 10 for 38 of its 41 weeks, and beat out the former best-seller, Dr. Kawashima’s Brain Training (dubbed Brian Age in the States), which took 36 weeks to top its predecessor, Grand Theft Auto: San Andreas.