"The Narrow Pass is a key strategic location that the Empire wants to control at all cost, as it is the only way to cross the Blood Mountains. The narrow canyon is divided by the Wolf River and is only connected by a narrow strip of land, providing passage through the middle of the valley. Although it is a narrow and complicated place to build a colony, it is of vital importance to the Empire. There are many infected at the bottom of the canyon who ended up there long ago. Move forward little by little to make your way through the canyon and kill all the infected and the approaching hordes."