The Artillery Marker is a utility found in Call of Duty: Modern Warfare (2019).
The Artillery Marker is a new method of marking locations for various Scorestreaks and other ordnance items. It is a small device that projects a green laser to pinpoint the target area. It is seen in both the Campaign and the Multiplayer modes. It is used to mark targets for the Cluster Strike in the Multiplayer, and is used to send airstrikes and rockets from the air in the Campaign.