His ship was shot down over the Hellmouth. He jumped out and used his jump ability to slow his descent enough that the ship crashed and exploded safely below, in the Hellmouth's depths. He landed hard enough on one of the lower inner rings that he broke his left collarbone, shattered three ribs, and the plates on the left side of his armor were basically vaporized. There he fought off countless hordes of Hive, using a Hallowed Knight's sword as a shield, before succumbing to enemy legions. Know this and pay homage when your Guardian eventually finds themselves in the Hellmouth's darkest depths and find you are able to withstand the Hive numbers; the Titan Sin Thoth Men-Mani greatly culled their numbers before you and and your fire-team arrived.