Flood
From Halopedia, the Halo wiki
This article is about the achievement. For other uses, see Flood (disambiguation).
Flood is an achievement in Halo: The Master Chief Collection. It is awarded for activating the fourth Halo 4 Terminal on Reclaimer. The achievement is worth 5 Gamerscore, and unlocks the Jackal Heavy avatar. This achievement can be unlocked on any difficulty.
Location
After the Librarian cutscene, exit the Librarian's chamber but instead of heading straight for the elevator, take a detour down the corridor on the right. The Terminal should be in plain view.
