The raven was possibly a chestbuster that was infected by nuclear radiation poisoning and became like this when molting. It's body resembles an ordinary Xenomorph, but larger and is almost entirely encased in an armored, spiked exoskeleton. Its tail has ridge of spines at the base of the tail's harpoon-like blade and like the Queen, it also has high heel protrusions from its feet. Its head possesses a ridged carapace, much like a Xeno Soldier along with a row of spikes on the top of its head. The left side of the Raven's face is scarred, revealing some parts of its skull consisting of an eye socket and a nasal cavity beneath the dome.
The Raven was first encountered by Corporal Winter in Hadley's Hope when he was about to regroup with his fellow marines. The Raven ambushed and knocked Winter unconscious. It then brought him back to its "lair".
Winter eventually regained consciousness, only to find that he is glued to the wall by the same resinous material as used in xenomorph impregnation. The Raven appears, approaches Winter, and then suddenly leaves. Winter takes advantage of the opportunity and managed to break himself free. Unfortunately, the Raven returned shortly after and began to hunt down Winter. With no way to defend himself (as he is stripped of all his equipment), Winter was forced to retreat further into the sewers to escape the Raven. Just as Winter is almost out of the sewers to meet up with his fellow marine, O'Neal, the Raven pursues them. However, they manage to escape back out to the open.
After reuniting with fellow marines Bella and Reid and attempting to hack the communications array, the Raven suddenly bursts through some nearby containers, forcing the group to separate. Shortly thereafter the team regroups back in a large cargo room. After O'Neal is rescued from the Xenomorphs, the Raven returns as the group make their escape. Unfortunately the Raven corners them forcing Winter to use a power loader to fight back while Bella, Reid, and O'Neal provide covering fire. After a tense battle, Winter manages to use the loader's arm to break its neck, instantly killing it. The group then returns back to Operations.