Basement B2 & Revolver Ocelot

Upon reaching Basement B2, you enter the facility's main weapons armory:

• Trapdoors: Watch your footing on the corridor tiles; stepping on certain floor sections will trigger instant trapdoors that plunge Snake into pits.
• Weapons Cache: Enter the left-hand locker room to grab Hand Grenades. Enter the upper room to obtain C-4 Plastic Explosives.

Inspect the concrete perimeter: notice the sections of discolored and cracked drywall. Plant C-4 charges on the walls flanking both sides of the elevator shaft and detonate them remotely to reveal two hidden supply closets packed with SOCOM ammo, grenades, and extra C-4.

Make your way toward the southwest corner of Basement B2:

• Plant C-4 on the discolored south wall to blow open an entrance into an unmapped service corridor.
• Follow the corridor east and plant another C-4 block on the discolored north wall.
• Detonating this final wall reveals the holding chamber where ArmsTech President Kenneth Baker is tied to four pillars laced with wired C-4 explosives.

The moment Snake enters the room, Revolver Ocelot steps out, spinning his Colt Single Action Army revolvers for a classic standoff.

Upon defeating Ocelot, an invisible Cyborg Ninja bursts into the room, severing Ocelot's right hand with a high-frequency blade. After Ocelot flees and the Ninja vanishes, untie Kenneth Baker. Following a debriefing on the REX project, Baker suffers a fatal heart attack, handing over the Level 2 Keycard before dying.