"Dark and snowy holiday themed Crash. Beware the airstrikes..."
— In-game description
Winter Crash, usually referred to as Christmas Crash, is a re-skin of the map "Crash" in Call of Duty 4: Modern Warfare and Call of Duty: Modern Warfare Remastered. It has the same layout as the regular version of Crash except with a Christmas theme, and it takes place during the night. It comes with the version update 1.4 on the original version for PC and with the December 2016 update for all platforms on the Remastered version, along with a Winter Crash 24/7 mode.
Winter Crash has the same layout as Crash, but with appearance changes. For one, it is set at night while Crash was set in the afternoon. As its name says, the map is set in a wintry landscape with snow on the ground instead of sand. The buildings are covered in Christmas lights and decorations. In between the split-in-half back and front of the downed CH-46 Sea Knight helicopter, there is a 15–20 foot Christmas Tree and presents lying around it.
On the original Call of Duty 4, this map could only be downloaded for the PC and the Mac versions through updating the game. It was unavailable for the PlayStation 3, Wii and Xbox 360 versions of the game (unless via modding). The December 2016 update for Modern Warfare Remastered brought this map to the PS4, Xbox One, and PC versions of Modern Warfare Remastered.