Chasm Stronghold - Sneaking Past the Oni Army

Make your way through the tunnel to a large ceremonial hall. Extinguish your torch before emerging from the tunnel. Otherwise, the Oni army will notice, and Lara will quickly become a practice dummy for their archers. There's no way in hell you can defeat these guys, so stealth is in order.

Turn right and stay close to the low wall as you head forward and up the stairs.

At the top, go into the alcove on the right to find a food cache—remnants of an ancient samurai picnic perhaps? Use Survival Instinct if necessary but, again, do not light your torch.

Move back toward the main hall and walk across the narrow wooden beam above the parading soldiers.

Take a minute to watch the majestic display of undead military superiority. Then move close to the wall and jump to grab the long, horizontal ledge that runs from here to the northwest corner of the great hall.

Traverse to the right, with Oni warriors above and below.

When you reach the corner, continue climbing around to the right.

Then jump past the hanging cloth banner to grab the window ledge beyond it.

It's a long leap, and you must press Interact to keep Lara from losing her grip.