Activision's Noah Heller sat down with Gamasutra to discuss the refinements made in Call of Duty: World at War to keep the popular FPS franchise moving forward. He points to cosmetic things, like realistic burning and the ability to set just about everything in the environment on fire, as well as bigger gameplay improvements, such as making the AI more difficult to beat without having it "cheat." "... the main thing we tried to do is honestly make the placement just more brutal. You've always got an advantage on the enemy; you've been through the level before, you know where they're going to be, but in Veteran mode you're going to find that they're not going to cheat. You're really going to have to be going for headshots using the most effective weaponry. You're going to have to use that bolt-action rifle and aim for the head if you want to take an enemy out at a distance. It's a different sort of gameplay. We heard those concerns and we tried to address them."