Activision have boasted that the Modern Warfare 2: Stimulus Package
map pack has shattered Xbox Live records with more than one million downloads within its first 24 hours of availability. By the end of the week, it had clocked some 2.5 million downloads on Xbox 360 alone.
Xbox LIVE is the largest Call of Duty community of any entertainment system. According to Microsoft, Call of Duty: Modern Warfare 2 players have invested more than 1.75 billion hours of gameplay on Xbox LIVE alone since the title’s release in November, which is equal to more than 200,000 years of gameplay playing Call of Duty: Modern Warfare 2.
If you haven't grabbed the map pack yet, it could be a good investment; Dan's interview with Infinity Ward Community Manager, Robert Bowling
eluded to match-making fixes for Australia, which so far (on Xbox 360) I can confirm is very true - I've had nothing but perfect connection since.