Forerunner Transport Artifact

The Forerunner transport artifact is an item that allows a player to travel to any of the Halo dimensions.

By right-clicking with the artifact in hand, the player then clicks the location and will thus spawn there.

Locations
Not only can a player travel to a different dimension, but to a specific location within the dimension.

Sanghelios (Sangheili homeworld) Janjur Qom (San'Shyuum homeworld) High Charity Balaho (Unggoy homeworld)
 * Csurdon Sea
 * Sunaion
 * 'Mdama Keep
 * 'Mdama Palace
 * 'Vadam Keep
 * Council Chamber
 * 'Vadam Palace
 * The Great Apothtea
 * The Keyship
 * Crellum Village
 * Grotto of the Great Transition
 * The Keyship
 * Compartments of Comfort
 * Sanctum of the Hierarchs
 * Far Tower
 * Council Chambers
 * Hanging Gardens
 * Valley of Tears
 * Mausoleum of the Arbiter
 * High Charity prison
 * Mid Tower
 * Sacred Promissory

Doisac (Jiralhanae homeworld)

Eayn (Ruutian & Ibie'shan Kig-Yar homeworld)

T'vao (T'vaoan Kig-Yar homeworld)

Te (Lekgolo homeworld)

Palamok (Yanme'e homeworld)

Yonhe (Yonhet homeworld)

Hesduros

Shield World 006 (Huragok homeworld)

Sharquoi Homeworld

Requiem (Promethean homeworld)

Ulgethon

Kig-Yar Colony

Unggoy Thrall Colony

Jiralhanae Mining Colony

Sangheili-led military base

Small-scale fleet world Abandoned Forerunner World
 * Note - This is where Covenant ships will spawn the most, besides High Charity. San'Shyuum families can occasionally be found here.

Banished military base

Extra Info
While Covenant mobs will often spawn in these dimensions, structures such as Covenant bases, Kig-Yar bars, Keyships, and Unggoy breeding facilities will occasionally spawn in the Overworld.