I saw a report that Fallen and Cabal were guarding a vault on Mars. I, a Titan, saw this report and asked an acquaintance Darla; a hunter, and my close friend Sean; a warlock, to help me secure this vault. We took my ship, the swordfish, out of the city. We set course for Mars as more reports said there was a huge Fallen warship over the city. We landed just outside of the warships sensors and evaded out of the sights of nearby patrol squads. We were just outside the city for me to see the warship. I have seen many ships but this was the biggest. It was almost as big as a frigate. Darla took point and led us into the city; she was able to snipe some Fallen with her silenced sniper rifle she called "The Splinter". As we snuck past patrols of Cabal, Sean tripped an alarm that alerted every enemy squad to our location. We made our way towards the vault as Sean was able to hack into the vault. He was able to activate nearby turrets to defend us. I readied my LMG as Darla loaded her Sniper rifle, and Sean brought his ghost he named Sparky online. The first wave appeared and Dreg were climbing down the nearby buildings and I was firing at them with my LMG. We were able to kill a lot of Fallen before the Cabal showed up. I was running low on ammo and I think Darla was too. Sean was having difficulty getting us into the vault. Sean did eventually get us inside and as we entered, the doors shut behind us. As we entered, an ominous purple light was flashing and we soon realized why the Fallen and Cabal were here in the first place...