When fighting these drones, a long range weapon is normally recommended, like a tek rifle or a compound bow. You cannot tame them on normal Ark, you may need a mod to do such a thing. When killed they drop element which you can harvest. Along with these, defence units normally spawn. On extinction the defence units will attack if you kill a drone. However, in the island, they will kill you anyway.
These guys will appear during the overseer bossfight, in the lunar biome on genesis and during the vr master controller (or just VR rockwell) and they are hella cocky, they will damage you from your mount, they don't do really high damage and with armor they do very low to 0 damage but they will slowly drain your armor's durability, best way to take care of them snipers are best suggested, if you really want you can use other ranged weapon or creatures with ranged attacks like velonas (if the drones are on top of you then you still wanna use your ranged weapons), and all I can say is that they are the cockiest of the robots