A new update for Halo: The Master Chief Collection has been released, which includes the addition of Escalation Slayer mode, a new game mode similar to Gun Game. The update also brings a new map called Waterfall for Halo 3, as well as other features such as mouse and keyboard support for Xbox and improvements to Firefight and Theater modes. The exact release date of the update is unclear, with some reports suggesting it was released in July.