This acronym represents the Heavy Drone Bunny. This is the individual that you will be Assisting your drones to.This member of the fleet is usually a Vindicator and is responsible for handling frigates and some cruisers.

This is new due to changes in drone assist mechanics (limited to 50 drones to assist pilots). So don't be surprised if you see a DDD2 or HHH2 in fleet MOTD the FC will assign squads to each as needed.