Fans lined up hours in advance of the release of Activision Blizzard Inc’s “Call of Duty: Modern Warfare 2”, before it went on sale on Tuesday.

With what Activision called a record level of preorders, there was little doubt about the great demand for the game. ‘MW2’ is set to be one of the biggest and fastest-selling games in history challenging records set by the blockbuster releases from the ‘Grand Theft Auto’ series.

According to analysts, sales estimates for the $60 game are expected to be from 11 million to 13 million units by the end of the year. Reviews of the game so far have been very strong. Website Metacritic.com gave it a rating of 96 out of 100.