- Blast Furnace

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Metal Gear Solid 4 Guide - Act 4: Twin Suns

Blast Furnace

Head left out of the door onto the gangway and straight on to the western wall. Press Triangle to hug onto it and shimmy along to the right after getting the Ration on the left. The game will drop you into a hanging position automatically, so move in this way further right until you come to the walkway. At the first corner on this walkway, climb up so you are standing on it. From here, glance down and follow the patrol of the Drawf Gekkos until they make their way up the steps.

Drop down from the walkway once the Dwarf Gekkos head up the steps

Climb back over the barrier on the eastern side of the walkway and drop down. Crouch walk in the opposite direction (roughly northwest) past the bottom of the stairs and the sight of the Dwarf Gekko on the wall to reach the elevator. Call it with Triangle by the panel and head for floor B5.

Getting through the Blast Furnace area