In the new Left 4 Dead 2 update, we stored the Knife's original horizontal swing trajectory. Now the knife looks like a weapon that can be used. Now you can easily skip the elevator on hard ground. However, fixed easy event skip on the second map of Coldstream. Also now you can't shortcut at the start of No Mercy. Don't deny yourself the pleasure of entering this room. And in Campaign Mode you can now walk on the roof of the hotel.