

With his death, the Artifact is finally overpowered. As he goes to many sections of the base, he encounters the Bruiser demons and defeats the last Hell Hunter, the Invulnerability Hunter, by using electric shockwaves. McNeil then orders the Marine to shut down all four core systems of Mars to power up the old teleporter on Phobos Labs, which is the only way to reach the sealed Delta Complex. She also reveals that the Artifact also works as a portal device, so the only way to stop the invasion is to return the Artifact to Hell, and the only to way to gain access to Hell is to use the old main gateway at Delta Labs - Level 4, which is sealed since the Mars outbreak two years ago. The Marine then visits McNeil, who discovered that the Artifact is, in fact, the Heart of Hell - a weapon made by the demons themselves to aid them in their war against the Martians. On Phobos Labs, the Marine first tries to teleport to Delta, but the teleportation fails due to a lack of power, and McNeil tells the Marine to meet her at her office. When he finally reaches the monorail station, the Marine confronts the Berserk Hunter and gains the power to kill any demon with his fists after killing the demon. Cloud and McNeil, the scientists begin to study its power. After delivering a piece of the Artifact's stone tablet to Dr. He also visits Sergeant Kelly's old office, where he gets Sarge's double-barreled shotgun. With the demon's death, the Artifact gains the ability to slow time, and the Marine learns that the only way to feed his new weapon is with humans souls, which the Artifact consumes after approaching it close to human bodies.Īs the Marine goes through the Erebus Labs, he encounters new enemies such as the Vulgars, Forgotten Ones, and Zombies using Hazmat suits. Later, the Marine uses it to defeat the Helltime Hunter. As he escapes the excavation site, he encounters a dying marine with the possession of the Ionized Plasma Levitator, also known as the Grabber. McNeil, after discovering the Artifact is linked to the invasion, orders the Marine to bring the Artifact back to her on Phobos Labs. As the Martian chambers falls apart, Hell begins to invade Mars once again. The Maledict sends the three Hell Hunters to retrieve the Artifact for him. as I promised" (hinting that he was probably the one responsible of somehow sending the signal to the orbital probe a year ago). Meanwhile in Hell, the Maledict realizes that the Artifact was touched, claiming that "they have arrived, my children. The wave reaches into a old Martian portal (probably, the original one who brought the demons on Mars centuries ago) and activates it. The Marine, upon touching the Artifact, awakens it and unleashes a blast energy wave, killing his team. The search team breaks into the chamber, finding a strange artifact - which the Martians sealed away millenia ago. On Friday March 17, 2147, the Marine and his team were sent by the archeologist scientist Viktor Kharkov to investigate a hidden chamber deep within Mars, beneath the Erebus Labs complex, with the supervision of McNeil. The player now takes control of a combat engineer marine, he is older than the original Doom 3's protagonist. Once more, strange occurrences haunt the facility. McNeil's main objective was to continue the experiments on Mars and discover what Betruger unleashed. Elizabeth McNeil, a ex-colleague of Betruger, who had transferred off Mars days before the outbreak and was the original one who requested Councilor Swann's presence on Mars. Months later, on Monday August 8, 2146, the UAC board of directors announced the renewal of the Mars program, now led by Dr. On Sunday May 1, 2146, an orbital probe recorded a faint unidentified signal broadcast from the abandoned Mars Site 1 complex. Malcolm Betruger, chief scientist of Delta Labs who - unknown to them - had become a demon named the Maledict. The marine team had no information regarding the fate of Dr. Master Sergeant Thomas Kelly and other Delta Labs scientists were also found dead. Important UAC personnel such the company's lawyer and counselor Elliot Swann and his bodyguard Jack Campbell, who arrived hours before the outbreak to make an assessment of the whole Mars operation and enact damage control if necessary, were found dead. Five days later, on Saturday November 20, 2145, the Recon Zulu marine team found only one survivor, a Marine Corporal. The invasion led to the total destruction of the facility, with all personnel killed. On Monday November 15, 2145, the UAC Mars Research Base was invaded by the forces of Hell after an experiment with the teleportation technology went wrong.
