Mountain Temple - First Pistol Combat

When you regain control after the cut scene, the action proceeds in slow motion for a few moments. Use the mouse or right stick to aim your pistol. Then Fire using the same button you use to shoot the bow. If you can manage a headshot, you're rewarded with extra XP.

If you don't kill either of the enemies during the slow-mo sequence, don't worry. You can get them now. The guy on the left hunkers down behind one of the crates, so you can ignore him for a moment, while the one on the right moves around to flank Lara.

Aim just above the top of the crate to your right, and when he peeks out, shoot him.

With luck (and a little practice) you'll get a headshot and bonus XP.

Then turn and shoot the other guy as he emerges from behind his crate

Follow the on-screen prompt and loot the bodies of the two men you just killed to get salvage and either bullets or arrows. Also be sure to pick up the box of pistol ammo near one of the wooden crates.

Ammo acquired is noted at the top right corner of the screen.