From Eurogamer: “The developer of a controversial third-party Call of Duty: Warzone app that lets you see your lobby’s K/D ratio before a match begins has made changes in response to online concern, Eurogamer can reveal.
Warzone Companion is an app ostensibly for displaying in-depth stats to players and for flagging potential cheaters in a lobby. But it became a hot topic within the Call of Duty community recently when it emerged it also displays the K/D ratio of all players in a lobby before a match begins. This is not something Warzone does officially.”
Source: N4G PC Developer of controversial third-party COD: Warzone app forced to make changes after players cheat