Activision have released the latest patch for Call of Duty 4: Modern Warfare, upgrading the game to version 1.6.

The patch features the new maps Creek, Chinatown, Broadcast, and Killhouse, as well as hardcore and oldschool server browser filters. There is a fix for a Denial of Service attack, and of course it includes all the changes up to patch 1.5.

Grab it from GP Downloads.