The report also mentions that 1.5 million copies of the mappack have been sold and CoD4 is one of only 9 or less games to sell 10 million copies since 2000 (I think he is excluding portable games as Nintendo DS already has five or six 10 million sellers and also bundled games).
I guess the other possible individual games to sell more than 10 million copies are:
GTA III GTA: VC GTA: SA Sims 2 The Sims GT3 World of Warcraft Wii Play
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I guess the other possible individual games to sell more than 10 million copies are:
GTA III
GTA: VC
GTA: SA
Sims 2
The Sims
GT3
World of Warcraft
Wii Play
GT4 is at 10.06 million according to SCE press release also.