Ok so im kinda average i guess on dayz, but all my time i have never found out what the purpose of trackers are. from the name, im assuming it tracks the gun and you can see where it is, but like why would anybody want a gun where people can know where you are?
The point of trackers are to add lives to a type of gun called "tracked", think of it as one tracker is one life for a tracked weapon that you can restore.