"Frank Delahue"@en . . "Frank A. Delahue (Identification Number: 8397-68) was an engineering manager assigned to the Mars City Underground on Mars. He was responsible for overseeing power production for Mars City. In the month prior to the demon invasion, he voiced his concerns about the constant energy demands from the Delta Complex (due to their secret teleportation experiments) which were straining the base's power grid. Delahue worried that they wouldn't be able to maintain the power levels for long, and that key systems would be shut down as a result. Delahue's PDA can be found on a control console in the Energy Processing room in the Mars City Underground. It is needed to access a security door. The PDA also contains the failure code 842, which enables the player to extinguish a fire and gain access to some supplies. Delahue himself is never encountered in the game. He was presumably killed or turned into a zombie during the demon invasion."@en . . . "Unknown"@en . "Frank A. Delahue (Identification Number: 8397-68) was an engineering manager assigned to the Mars City Underground on Mars. He was responsible for overseeing power production for Mars City. In the month prior to the demon invasion, he voiced his concerns about the constant energy demands from the Delta Complex (due to their secret teleportation experiments) which were straining the base's power grid. Delahue worried that they wouldn't be able to maintain the power levels for long, and that key systems would be shut down as a result."@en . . "Engineering Manager"@en .