Interdimensional Horror

Abyssal Fiend - With great hubris, the Primerdyne science team opened a transdimensional portal. They were unprepared for what awaited them on the other side, however. Shortly after the rift was created, horrors spilled forth in legion. The security detail did their best to suppress the flow of darkness, but many were slain or driven mad with fear before they could close the portal. Hearing the emergency klaxon ring through the station, the Marine emerged from his cell to find a trail of blood leading to the Science Lab. A more cowardly man might have fled to the escape pods, but the Marine joined his faltering squadmates and slew the demonic scourge. How he attained such courage, and prowess in battle, no one knows.