Wolfenstein: Youngblood

This is cumulative and will unlock naturally while you are playing the game as there are more than 20 throughout the campaign. They are small aerial robotic enemies that patrol outdoor areas. If they detect you, an alarm is activated and more will spawn from a nearby drone tower.

Drones are mainly equipped with missile launchers, but some are armed with an electric cannon, similar to the Elektrokraftwerk. Luckily, they are weak and only take a few hits before they are destroyed.

If you have not unlocked this by the time you have completed the campaign, there is a drone tower in the first section of Brother 3. It is located at the far end of the riverbed (where you would normally continue the mission). If you do not use a code to close the tower, drones will continuously spawn for a time, making this a good location to farm kills. If you still need kills, keep revisiting Brother 3 via the Metro Map and not by speaking with Abby.

This is not tracked separately in the ‘Statistics’ menu, but counts towards your overall kills.