Outer Heaven may refer to:

• The ideology of Outer Heaven, envisioned by Big Boss as a means of "realizing The Boss's dream."
  • The fortress of Outer Heaven, built in the nation of the same name.
• Army's Heaven, a similar concept originally envisioned by FOX's squad commander, Gene.
• The Militaires Sans Frontières mercenary company, founded by Big Boss, which served as the precursor to the Outer Heaven nation.
• The nuclear weapons disposal facility on Shadow Moses, which Liquid Snake intended to reform into a new "Outer Heaven."
• The codename for Solidus Snake's supposed plan to detonate a nuclear weapon over the skies of Wall Street, during the Big Shell Incident.
• The Outer Heaven PMC mother company, commanded by Liquid Ocelot.

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