Level 13 -- Catacombs of the Talion

Head into the next room, go left, pull up into the crevice, shimmy right, and pull up to get flares (1) and Secret #1 -- Silver Dragon (2).

Pull back up onto the wall and make a running jump while holding Action to land on the bottom step by the ladder on the opposite side of the room.

There is a Yeti (1) down in that pit, and you have to go down there to throw a switch.

Light a flare, then draw your pistols so that the flare drops down into the pit.

Do a diagonal standing jump/grab to the ladder.

If the Yeti is right underneath you, descend until you are just out of its reach. Backflip over him, draw your guns, and do your best to Run and Roll him in this dark and cramped space.

If you don't see the Yeti below you, drop to the ground, Roll, and move diagonal left. When Lara targets the Yeti, start firing and move down the stairs. The Yeti might pull up past you, and if you continue down the stairs, you might avoid all damage here.

Head over to the gated opening at the bottom of the stairs. On the wall to the right there is a switch to throw. It will open a door ahead, but it also releases a leopard (2) into the next area.

Climb back up the ladder, dismount right, and stand at the top of the slope on the other side of the room.

Slide down the slope and do a jump/grab at the end and pull up. If you have trouble making this jump, slide down backwards, grab the edge, and then backflip onto the top step.

Those stairs have overhead icicles that you do not want to trigger just yet, so run (or backflip, depending on which way Lara is facing) straight ahead and off the stairs, face the stairs, and take out the charging leopard.

Now you can start at the bottom of the stairs on the side next to the wall and slowly walk up, triggering 2 more sets of icicles.

Proceed back down the stairs and into the next room.

This room has three parallel rows of stairs. Descend the first row, but when you get to the second row, safety drop down from the second highest step. If you descend all of the steps, you will trigger two gunmen behind you, and you are not quite ready to deal with them yet.

Drop to the ground and go around to the far (left as you are facing it) side of the pool and slowly advance towards the back wall. When you touch the second square past the far edge of the pool, you will release two leopards (3, 4) from the center of the back area, and you can dispatch them by backhopping.

In the back on the right, there is an opening. Go through there and down the ramp to grab a small Medi Pack (3).

You now have to deal with the gunmen. Touching the fifth step from the bottom will release the aforementioned gunmen back where you entered the area.

Get on the bottom row of steps and run up the first 4 steps, then across the corner of the fifth step and onto the ground below, releasing the 2 gunmen (5, 6). Center Lara on the far side of the pool, as close to the edge as possible without risking falling into the water.

As soon as Lara can target an enemy, have her shoot while side-jumping. You're seriously outgunned here and just have to accept taking some damage.

Move in to claim the loot: auto pistols ammo (4), large Medi Pack (5), and 2 sets of Uzi clips (6, 7).

Now you get to run a time challenge for a Trophy. Follow the path described below. You just don't have to meet the 25 second time limit, so you can take your time.