Dreadnoughts were gigantic Scarran battleships that were the primary command ships of the Scarran Imperium. These ships were almost twice the size of Peacekeeper command carriers but with inferior firepower. Despite their immense size, Dreadnoughts could generally be overpowered by command carriers in one on one engagements.
Like the command carrier, the Dreadnought could deploy squadrons of Strykers.
The most notable of all the Dreadnoughts of the Scarran fleet was the Emperor's personal flagship, the Decimator, which was even larger than the average ship of its class.