On My Mark

On My Mark is an achievement in Halo 5: Guardians, awarded for simultaneously assassinating two Elites in Blue Team co-op.

v • d • e Achievements in Halo 5: Guardians (list)

Campaign	Into the Fire • Argent Moon • Glasslands • Roots of the Earth • Stolen Gauntlet • Escape • Together Again • Swords • Old Bones • Breakthrough • Stormbound • Civil War • Reclamation • A New Dawn • Sentinels • Legacy • Heroes Rise • Forging a Legend • Lone Wolf • My Rules • Conspiracy Theory • Hunt the Truth • Gravedigger • Gravelord

Co-op	One for All • All for One • On My Mark • Maverick • Preying Mantis

Level-specific	Your Team is Your Weapon • Enemy of my Enemy • I Thought I'd Lost You • Going the Distance • Shoot from the Hip • Waiting on You • Savior • Fire Drill • Take a Hike • No Witnesses • No Knock Raid • Kraken Lackin' • Emergency Boarding Procedures • Death from Above • Worms Don't Surf • Tank Still Beats Everything • Rolling Thunder • Harbinger • Prison Break • Icy Cool • Double Stuff

Multiplayer	Cry Havoc • Top of the Food Chain • Warlord • Castle Crasher • Off to the Races • Flag Monger • Spartan Decimation • Valor Recognized • Your Style • Raise Your Banner • Make Your Mark • Gamemaster • Benchwarmer• Drop A Quarter• Up For A Challenge• Party Hearty• The Hare• The Tortoise• Not Your First Rodeo• Tour of Duty• Dangerous Game

Requisition	Bringing in the Big Guns • Go for the Gold

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