Covenant starship - Halopedia, the Halo wiki

Unidentified Covenant assault carrier class - Ship class - Halopedia, the Halo wiki

Why can't the UNSC create bigger ships as the Covenant does? - Quora

Type-31 Exoatmospheric Multi-role Fighter, Halo Alpha

Halo Waypoint/Universe/Vehicles — WikiHalo

The Covenant - Faction - Halopedia, the Halo wiki

Modular Dispersal Technology - Halopedia, the Halo wiki

Covenant stealth ship - Ship class - Halopedia, the Halo wiki

Created uprising - Conflict - Halopedia, the Halo wiki

Excavation beam - Halopedia, the Halo wiki