In Halo: The Master Chief Collection the achievement is unlocked by completing Tip of the Spear on any difficulty. The Xbox achievement artwork is a Halo: Reach concept art of the mission's Covenant staging invasion force.
The achievement's name is a direct quote from Miranda Keyes, when responding to a request for a rally point location from a Marine in the opening cinematic of the Halo 3 level Crow's Nest.