From cheesing XP to level quickly, to the new slide cancel, and finding strange places to hang off of, the Modern Warfare 2 community has been hard at work testing multiplayer while waiting for Warzone 2.0. Here’s what you’ve found so far. From cheesing XP to level quickly, to the new slide cancel, and finding strange places to hang off of, the Modern Warfare 2 community has been hard at work testing multiplayer while waiting for Warzone 2.0. Here’s what you’ve found so far.