Halo 4 has achieved the biggest launch of the series' history and is "on track" to become the biggest entertainment launch of 2012 so far, according to Microsoft. The publisher said in a press release today that the game is "on track" to hit $300 million in global sales in its opening week. The game hit around $220 million in sales worldwide in the first 24 hours, which MS says "eclipses the record for the biggest day-one opening in US box office history", beating record holder 'Harry Potter and the Deathly Hallows: Part 2,' and the biggest movie of 2012, 'The Avengers' - although it notes that this is based on US sales alone. Over 4 million players were logged in the first five days - another record for the seres. Lifetime sales for the Halo franchise are now over $3.38 billion, says MS. "We're thrilled that 'Halo 4' has emerged as the biggest U.S. entertainment launch of the year," said corporate VP of Microsoft Studios Phil Spencer. "Thanks to the millions of fans worldwide who helped make this another record-breaking launch for the 'Halo' franchise, 'Halo 4' is kicking off a strong holiday season and has become the must-have blockbuster experience of the year." Halo 4 debuted at No.1 on the UK all formats chart for the week ended November 10. It ranks as the UK's 18th biggest SKU launch in terms of week one unit sales, but failed to beat 2007's Halo 3 (15th biggest) or Halo Reach (12th biggest).