If you need any more proof about controversy makes things sell, just take a look at the sales figures for Activision’s hit selling game, Call of Duty: Black Ops. Highly-controversial game, Black Ops (due to the depiction of terrorists and other real life events in the game), was recently bestowed the title “best selling game of all time in the US” by the NPD (National Purchase Diary). In the 5 months it’s been released, Activision has managed to sell 13.7 million units across all platforms. Talk about a massive success. However, critics aren’t too pleased with Activision, complaining about how they keep forcing annual releases of their hit franchises until it becomes boring. Even the folks at Dice, the developers of Battlefield 3, say that they can’t keep on using the same recipe for building a game. “They had better watch out. We are coming for them.” Activision is probably living by the motto: “if it ain’t broke, don’t fix it.” And the reported 13.7 million units sold in 5 months really back it up. What do you think? Does Call of Duty need a fresh new formula to stay successful?