Take a Hike

Take a Hike is an achievement in Halo 5: Guardians, awarded for completing the level Reunion on Heroic or Legendary difficulty without getting in a Phaeton.

Description
After the Warden Eternal boss fight, the player must cross a series of chasms to reach the Gateway. A pair of Phaetons are available for this section, but none of the Spartans must ride them for the achievement. Instead Blue Team must cross the chasms through a series of man cannons, battling Promethean Soldiers, Crawlers, a Promethean Knight, Focus Turrets, and Soldier Captains wielding splinter turrets.