Born in 2525, Marrissa was two when a rogue ONI Section III officer killed her parents and abducted her. He did it to two other children, and she writhed under the man. The officer trained Maria and the other two children in the art of warfare, in hopes he might make them SPARTANs one day. However, six years into training, Section 0 of ONI sent in SPARTAN-144 to kill the man for treason. 144 Soon found the three SPARTANs, and brought them back to Reach. Once there, they received more training, then were augmented and turned into Section 0 enforcers. However, they eventually shifted to the front. In 2552, the makeshift SPARTANs were transported to Reach and given MJOLNIR Mk. 5, but the planet was attacked by the Covenant. The SPARTANs made their way onto the Marathon Class Cruiser Valley Fo