The CEO of UAC, Samuel Hayden, tells the Doom Slayer that the UAC was sending workers to Hell to get Argent Energy, an extremely powerful and efficient source of energy, and to do research on captured demons. He says it is absolutely needed to solve Earth's energy shortage. However, it was not his plan to unleash Hell. He tells the Doom Slayer that Pierce went insane and went too far. While the Doom Slayer agrees to help Hayden stop the demons coming on Mars, he also tries to destroy the Argent Energy production as well, which makes Hayden unhappy.