- Main article: Battle of Draetheus V
Draetheus V was home to many human research facilities and magnetic reactor stations. In the post-war years, the Covenant Remnant attacked the planet because they were interested in the planet's largest magnetic reactor field. UNSC Infinity was deployed along with SPARTAN-IVs Palmer and Davis.
- Halo: Spartan Assault (First appearance)
- ↑ Halo: Spartan Assault, Level Select Preview: "The northern continent of X50, Draetheus-V's moon..."
- ↑ Halo Waypoint, Halo: Spartan Assault, "Defend" description, "UNSC technicians had built numerous magnetic reactor stations across Draetheus-V. The western reactor field was one of the largest of these stations and was of great interest to the Covenant..."