Type-25 Spirit (Earth-2042)

The Type-25 Troop Carrier, designated as the DX-class dropship by the Covenant and commonly known as the Spirit, was an infantry and logistical dropship and utility craft manufactured by their Tertiary Assembly Forges. Dubbed the Dextro Xur design pattern, the Type-25 Spirit served as one of the primary transport crafts of the Covenant military, though the Type-57 Spirit is now utilized by the Swords of Sanghelios' army and other Covenant remnant factions.

Source

 * https://www.halopedia.org/Type-25_Spirit