Maxim previously brought Judgment players a new map and mode in late March.
Dreadnought will be playable only in the game's Overrun mode. It takes place on the CNV Pomeroy, a beached ship that had been sailing on the underground rivers of the Hollow. Locust hordes storm the vessel in an attempt to rescue captured Berserkers that the COG are transporting to a research facility.
According to Epic, the DLC will only be free "for a limited time." The first Maxim-sponsored content remains free at this time.