Eurogamer writes: "If you'd said six months ago that Halo 3 would not be the most popular game on Xbox Live in mid-2008, we actually wouldn't have scoffed at you - largely because 'scoffing', as far as we're aware, is something only done by characters in Enid Blyton novels - but we'd certainly have expressed utter disbelief. Probably in the form of ridicule. Okay, we'd have scoffed. We'd also have been wrong, because Halo 3's been eclipsed in the online stakes by Infinity Ward's Call of Duty 4."