Valve has released a new mutation for its popular game, Left 4 Dead 2. This new mutation is called Lone Gunman. The core gameplay basis is that you and a Magnum pistol are versus the infected hordes and Boomers. It seems like a rather challenging mutation, so be sure to check it out!

Next week’s mutation is called Bleed Out Versus. What do you think it is? Leave your thoughts below in the comments!