Riverbed - Second Enemy Encounter

After defeating the first group of enemies, climb onto the ledge with the floodlights to the north.

Walk across the fallen tree to the rock ledge on the right. As you go, Lara overhears the men ahead talking.

Move out onto the jutting ledge. Wait for the lone man below to approach and crouch down. You should then see the Melee icon above his head.

Press the button to leap down upon him.

There are 3 more mercenaries on the other side of the river. Two of them can be seen from here. The other is a bit farther to the right. Swim across on the left side, so they don't notice you.

Climb out of the water and quickly scramble up the tree just ahead.

Wait here and one of the men should move away toward a fourth man, while the other approaches the tree where Lara is hiding.

Wait until the man below is isolated (yellow in survival instinct)...

...then press Melee to leap down and stab him.

Use the mud patch just ahead to reapply the camouflage that washed off when you took a dip in the river. Then move into the bushes ahead on the left...

...and from there to the vine-covered boulder between Lara and the remaining enemies.

Sidle along to the left so you can see what they're doing. When one of them heads back toward the guy you just killed...

...move quickly toward the other enemy...

...and melee kill him before he notices Lara.

By now, the last man will have seen his buddy's corpse and start hollering. So quickly move back against the vine-covered boulder.

Sidle to the right. The last man should move directly toward you, in which case all you have to do is wait for the Melee prompt...

...then finish him off.

- OR -

If the last man heads back toward the third man...

...follow him and stab him from behind.