To unlock the JOKR as contraband early, you need to complete this mission. Upon successfully finishing the mission, it will be directly added to your contraband stash.
The mission revolves around destroying vehicles at specific locations on the Al Mazrah map. To complete this mission, visit the locations listed in the requirements below. You can use grenades, rocket launchers, or regular bullets with a standard gun to destroy the vehicles. At the Zaya Observatory location, it can be advantageous to position 2 cargo trucks close together to save time and grenades.