Chief is getting his new suit tested and as it ends Johnson comes by. They enter an elevator and go. A celebration happens for Miranda keys promotion and the chiefs bravery for destroying Installation 04. During Miranda's promotion the station gets attacked and chief is tasked with killing the enemy(Covenant). As he dominates the hoards of Covenant they find a bomb. Chief as the badass he is grabs the bomb gets thrown in space and takes the bomb to the Covenant ship. Reactivating the bomb he kicks it at the core and flys back to the station. He immediately gets sent to earth as Covenant are attacking.