While Valve has yet to officially reveal Left 4 Dead 3, it was apparently cancelled in development. McVicker has been a fairly reliable source when it comes to information regarding all things Valve, although these could just be assets from CS:GO. According to him, this was from an old build of Left 4 Dead 3 that was made 'within the assets set' of Counter-Strike: Global Offensive's remake of its Dust 2 map. Co-operative shooter Left 4 Dead 3 was apparently in development and screenshots of an early build have surfaced thanks to YouTuber Tyler McVicker.
