Perhaps the World War Z shooter was originally launched in a rather modest version, but since then the game has grown significantly thanks to a good road map of free content for all players. The last free update called DroneMaster includes support for cross-games between all platforms.
In the focus of the update of the new class - DroneMaster. Its name corresponds to the action, because DroneMaster uses support drones to either fight the zombies directly, or play the role of support for your command using a variety of buffs. Drones upgrades, which you can see in the video below, looks pretty large, and the developers say that thanks to its protective, supportive and combat capabilities, DroneMaster is the most universal class.