An analyst for Nollenberger Capital Partners has gone out there and stated that he thinks Activision's awesome Call of Duty 4 will outsell Halo 3.
Todd Greenwald said, "Thus far, the game has an average score of 9.5/10 on Metacritic.com, which is almost unprecedented and puts it on par with Halo 3. It certainly is the highest-rated game Activision has ever created. Keep in mind, COD4 is launching on four times as many platforms (Xbox 360, PlayStation3, PC, DS) as Halo 3 (360 only).
"Halo 3 has so far sold about four million units. A year ago, Call of Duty 3 sold about 3 million units, and we anticipate this year's version could do four million or more."
It could be the new Halo on Xbox Live too, if those connection issues are sorted out anytime soon.