After Claire's section, you'll switch to Barry Burton, arriving on the island six months later, accompanied by Natalia Korda. Your objective is to find Claire. From the starting beach, follow the path inland. Natalia's unique ability to sense enemies through walls (indicated by a purple aura) is crucial. She can also point out hidden items. Use her frequently to scout ahead and avoid ambushes. You'll encounter your first Afflicted as Barry. His revolver is powerful, but ammo is scarce, so aim for headshots.
Proceed through the dilapidated structures. You'll come across a locked gate that requires a specific item to open. Natalia will often point out these interactive elements. Look for a small crawlspace that Natalia can squeeze through to unlock the gate from the other side. This highlights the importance of using both characters' unique abilities. Continue through the forest path, dealing with more Afflicted. Natalia can also throw bricks to stun enemies, giving Barry an opening. You'll eventually reach a small village. Explore thoroughly for supplies. Your objective will lead you towards a radio tower, where you'll find a crucial clue about Claire's whereabouts.