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R. Cooper is a Mars-Sec security guard encountered at the beginning of Doom 3, who inspects cargo inbound from space transports to Mars City and greets new arrivals on Mars. He also directs them to where they should go. His fate is unknown.
His name may be a reference to a character named Richard Cooper in the 1995 Sci-Fi film Screamers.
Trivia
- Cooper wears a standard Mars-Sec uniform and helmet with goggles, and has a standard PDA. Killing him though (with Cheats) will not make him drop his PDA.