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Legendary All Skulls On (LASO), also known as Mythic, is a fan-created difficulty that requires setting the difficulty to Legendary and activating all skulls.[1] Solo LASO (SLASO) is LASO with only one player. The Iron skull forces the player to complete the mission with zero deaths or saves. LASO is possible in all Halo first-person shooters post-Halo: Combat Evolved.

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SourcesEdit

  1. halo.bungie.org - Halo 3 Mythic Walkthrough by the Tyrant
  2. GamingAnimal.com - All Halo 4 Emblems