Stop a Cabal assault team from detonating the Dreadnaught's core. Complete strike "Shield Brothers."
"The Skyburners were under the command of Primus Ta'aun until Oryx took him. Our records say Ta'aun was bound in the shield rite to his "brothers": Valus Tlu'urn and Valus Mau'ual. Perhaps we can use this to our advantage."