Pre-Infiltration Briefing
Solid Snake — Shadow Moses Infiltration
This guide follows Solid Snake's infiltration of the Shadow Moses nuclear disposal facility, chapter by chapter — the route through each area, every weapon and key item worth a detour, the Codec frequencies that keep you alive, and a direct strategy for every boss. It follows a first-playthrough line on Normal: it does not chase a no-kill / no-alert run, and each boss section gives the straightforward approach.
Difficulty:
Normal
Key Points
- Codec directory: 140.85 Campbell & Naomi (intel and medical), 140.96 Mei Ling (save game), 140.15 Meryl (after interrogating Baker), 141.12 Otacon (REX blueprints), 141.52 Nastasha (weapons), 146.07 Miller (arctic survival)
- Soliton Radar: Upper-right map of geometry, Genome Soldiers, and their blue vision cones — it goes dark during Evasion and Alert, and jams in heavy interference or right after a Chaff Grenade
- Alert cycle: Normal patrols, Evasion after a guard hears a noise, red Alert with strike teams; break sightlines in ducts, under trucks, or in lockers until the countdown clears
- Rations: A ration in your active item slot auto-triggers on lethal damage and refills health — but freezes solid in sub-zero sectors until thawed near a hand-dryer or steam pipe
- Saving: Tune to Codec 140.96 (Mei Ling) before unexplored complexes or after hard firefights
Recommendations
- Save via Mei Ling on 140.96 before every new area and every boss.
- Keep a ration equipped at all times so a fatal hit spends the ration instead of a continue.
- Watch the radar cones, not Snake — most of this route is solved by waiting out a patrol rather than fighting it.
- Carry Chaff Grenades for camera- and radar-heavy rooms; carry Stun Grenades for the crowd fights.
- Call Campbell, Nastasha, or Miller whenever you are stuck — MGS1 hides real hints and boss tactics in optional Codec calls.
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