About a quarter of seed frigates evolve over time in to the combat frigate but most combat frigates are created by the infection and mutation of caputed frigates of other civilation. This is the most common combat ship The Swarm uses and untill it enocnters organised miltary resitestance simply thowing enough of these at a threat seems to do the job.
Normaly used in small packs hunting for prey to cripple or escorting seed frigates.
Armed with fixed foward weapons of supprsing power. Twin Frigate class beam cannons and a side pod with plasma guns. This is not a ship you want to be infront of.