These small craft were sighted moving with incredible acceleration, flying in close formations, and didn't seem to operate anything that looked like conventional weaponry. There were scattered reports of freak power drains just after they were observed, and at least one report of them latching themselves to a ship in large numbers, intentions unknown.

Fighter craft that seemed to match our own fighter capabilities extremely well. Travelled in packs and favoured strategies that seemed to allow them to attack from multiple angles at once. Possible short-term cloaking ability would explain our inability to track them accurately. Deadly weaponry for their small size. Kept our fighter squadrons very busy, even when greatly out-numbered.

Only a single image exists of this capital-sized vessel. Its gravimetric size profile was frequently detected at extreme long range, however, with the enemy seeming to prefer sending in their smaller craft to keep our fleets occupied-- while the so-called Bertha sat comfortably far away from any battles, and proceeded to bombard the colonies and capital ships with pin-point accuracy.

Nothing is known about this apparent super-capital. Best guess is that it performs some utility related to its immense size profile, perhaps a weapon that draws a vast amount of power. Or it could be a colony vessel of some sort, where the bulk of the enemy themselves may be residing. We simply don't know.