The Norma Sentinel is a specially designed Sentinel created from the Guardian of Norma, a huge Forerunner space station that is located in the Norma Arm close to the Galactic Core. It is a rare sight and is only ever seen within the limits of the Norma Arm, hence its name, where it guard Forerunner structures. During the Forerunner-Flood war, the Guardian of Norma made an unknown number of slipspace jumps up and down the Norma Arm to escape Flood infected fleets. This lead to some of the Norma Sentinels being stranded in some locations when the Guardian had to make a hasted slipspace jump to flee once more. These left behind sentinels would then seek out the nearest Forerunner facilities known to them no matter how far away they may be. This resulted in that a small number of Norma Sentine