Help !!! With the game miracles happen. (Dark Sector)

I bought the game and loaded from the Internet more than once. On different laptops and computers. The result is the same. What a curse. It ALWAYS flies out !!!!! in the same place. Almost at the beginning, where you kill a couple of three rednecks in the hangar and climb on the iron staircase to the balcony and the turntable flies into the windows, you can see it. Help plizz !!!! or I don’t know what to think ..