Tracker

Tracker can refer to three things:
*Tracker Sight - A sight in Call of Duty: Ghosts.
*Tracker (attachment) - An attachment in Call of Duty: Advanced Warfare.
*Tracker (perk) - A perk in Call of Duty: Black Ops III, Call of Duty: Infinite Warfare, Call of Duty: Black Ops 4, Call of Duty: Mobile, and Call of Duty: Modern Warfare (2019).