Chimo was a member of United States Colonial Marine Corps. He was part of a 31 marine platoon under the command of Captain Paget, aboard the combat ship Hasdrubal that landed on the planet Tartarus. He was ambushed and murdered by the Hive Wars Predator.
Upon landing on the planet, Chimo and fellow marines Garland and Herrman were ordered by Captain Paget to "sweep" the area. Chimo immediately began complaining about the insects that kept on stinging him.
Later on during their patrol, Chimo is still seen complaining about the bugs stinging him, with Garland teasing him. Garland suddenly points out that Chimo has seems to be getting bright spots from his stings. As Garland takes a closer look, it is revealed that they are the three red dots of a Predator Plasmacaster, with Chimo's head suddenly being blown to pieces as the Predator emerges and slaughters Garrland and Herrman.