But when she demands Zavala’s obedience, negotiations collapse, and Guardians must become the tip of the spear that strikes at her growing war council.ĭesigned as the ultimate Vanguard staging ground, the spaceport provides the resources Guardians need to face the most powerful of incursions. With the Pyramids and Xivu Arath destabilizing the system, Empress Caiatl, leader of the Cabal and daughter of Calus, seeks an alliance.