Why is this level SO GOOD? (Call of Duty 2 - Hold the Line)

"Holding the Line", also referred to as "Hold the Line" in the opening cutscene, is the ninth level in Call of Duty 2.

Call of Duty 2 is a 2005 first-person shooter video game developed by Infinity Ward and published by Activision in most regions of the world. It is the second installment of the Call of Duty series. Announced by Activision on April 7, 2005, the game was released for Microsoft Windows on October 25, 2005, and as a launch title for the Xbox 360 on November 22, 2005.[1] Other versions were eventually released for OS X, mobile phones, and Pocket PCs.

The game is set during World War II and the campaign mode is experienced through the perspectives of four soldiers: one in the Red Army, one in the United States Army, and two in the British Army. It contains four individual campaigns, split into three stories, with a total of 27 missions. Many features were added and changed from the original Call of Duty, notably regenerating health and an icon that indicates a nearby grenade about to explode.