UAC Personnel Log: 0012_93- The Marine
According to recovered UAC Military personnel files, a marine was punitively sent to Mars for assaulting his commanding officer who had ordered his unit to fire upon civilians in a riot at UAC Earth Central. The marine, along with the rest of those stationed on Mars, were consequently posted to Phobos after the security request was granted following the Hell Gate's appearance. Assigned perimeter defense, the marine was left alone while the rest of the unit proceeded inside the Phobos base; they were killed shortly after their arrival. Audio and video logs have confirmed that the marine was responsible for clearing the two moon bases of their demonic captors with an almost inhuman sense of simultaneous brutality and precision. After being transported to Earth and then to Hell itself, the demonic forces were wiped out, and any stragglers were taken care of by the resistance or went into hiding.
The personnel files at UAC Earth Central were found to be corrupted due to the damage the facility undertaken following the invasion. The lone marine's name is unknown, and when asked by Earth's resistance, the marine didn't know either. It is as if something fired off in the man's brain from the shock of the invasion and the subsequent bloodshed and violence… perhaps a form of extreme PTSD. Based on post-invasion tests and therapy, this shock theoretically allowed him to block any human emotion, essentially snapping him to become a berserk killing machine. Though the marine didn't talk much, a name would frequently pop up during his therapy sessions; Daisy. Eventually, the marine cut off ties to the UAC completely, and was never heard from again.
UAC Hellgate Artifact No. 00D2_M30: Religious Tablet
Shortly after the Marine made contact with the resistance, UAC procured an ancient stone tablet, depicting a demon shockingly close to the doomed soldier's first-hand account of the biggest demon he had ever seen. The following set of verses was inscribed on the back.
1For it is commanded of my brethren- of Dis, of Pandemonium, of Erebus and Limbo- lay waste to thine Enemy's children and theirs.
2O' Baphometh, Pantocrator!
3The shores of Hell will run red with the blood of the Oppressor's kin, and their flesh shall be consumed.
UAC Demonic Entity Log: 014- The Icon of Sin
After plunging into Hell itself to vanquish Earth's destroyer, the Marine lost all contact with UAC and the human resistance. Describing what he had experienced, the Marine told of a gargantuan demon dwelling inside Hell's Tower of Babel, larger than anything he had encountered prior. After he had relayed what he had seen to UAC, the research team noticed a connection between the Marine's story and an artifact the team had recovered months before. Seen in icons and hieroglyphs, the entity was described to lack an appropriate vessel body, instead attaching itself to the inside of the tower. It was said to have had a special mode of attack, different than any other of Hell's forces. Spawning from an exposed brain in the demon's forehead were what the team referred to as "Soul Cubes"- spectral containers housing the human souls of the damned, that upon impact with solid surfaces, erupt and transform into members of the demonic army. According to the marine's reports, demons often acted on their own accord, whether in cooperation with each other or not. Though in the presence of this monolithic devil, the demon horde acted in controlled unison.