Two related issues here: A friend just started playing the game today, and he is moving EXTREMELY slow. He's making all the right animations, so I'm pretty sure he's hitting the right buttons. But walking, running, and sprinting are all about half of my speed. I've got him to double-tap shift, right click, toggle raise weapon, all that good stuff. But as I said, he's making all the right animations, and his fists aren't up or anything. Second issue: I know my brother is playing the game correctly, we've been playing for about two years now. But he runs just a little bit slower than I do, his sprint speed is somewhere between my run and sprint. Not a huge issue, but annoying all the same, and he gets run down by zombies a lot.