Scale the bridge and find the crossing (1) | Chapter 24: Bridge Metro: LL Guide
Last update: 11 May 2016
Follow the Dark One. Before you take the main ramp, explore the area to the left, where there are quite a lot of supplies and a sniper rifle.
After you reach the bridge, move towards the first group of monsters. If you have nothing against it, it would be a good idea to kill out every last of them, first by attacking at a long range (that's where the sniper rifle you have just found comes in handy) and then by dealing with them at a short range (you can deploy mines first).
A way better idea, than fighting, is to avoid the mutants. This is because the game awards additional achievement for beating this level without killing monsters. If you decide to take this path, start by learning about the area, using the modified seeing mode received from the Dark One.
At first, keep close to the left wall and squeeze past the mutant that is feeding to your right. At the same time, make sure that you do not come too close to the beast staying on the left side.
After you reach the demolished part of the bridge, turn left and carefully approach the area shown in the above screenshot. As you have probably noticed, the area is being patrolled by one of the mutants. Wait for the monster to turn away from you and start walking away. Only then, emerge from behind your cover and take the first turn to the left.
If you want to, you may take the ramp to the lower level to examine the area more thoroughly. Unfortunately, apart from a corpse and a measly amount of supplies, you won't find anything of interest here.
Return over the ramp to the top, and wait for the beast you have just squeezed past, to start walking towards your starting point for this chapter. Only then resume your walk by keeping to the left side of the bridge, and go towards another big area that has been shown in the above screenshot. At the same time, ignore the demon that will snatch at a mutant, because the beast is in no way a threat to you.
It would be a good idea to stop after you reach the other side of the bridge and use the "X-ray" mode to examine the surroundings and learn the location of mutants here.
Just like previously, keep to the left wall, so that you go around the mutant, in the middle of the bridge, at a safe distance. At the first opportunity, jump down onto the track to the left.
After you reach the final part of the track, with a demolished car on it, return to the platform above. Backtrack a bit and turn left to take the exit from this location shown in the above screenshot (optionally, you can also explore the small area to the right, but it is risky, because you could be noticed by the mutant staying atop the train to the right.
Go straight ahead, and take a good look around. Thanks to this you will find the entrance to the room on the left (screenshot 1). Examine the room to find an Artyom's diary page shown in screenshot 2. While you are here, also have a look into the nearby lockers to find ammo and military-grade rounds.
Leave the room and resume your walk by taking the disabled escalator. Stop once you reach the foot of the stairs and use your rifle scope, for example, to examine the area ahead.
Carefully, walk around the monster to the right (the good news is that the mutants here attack only if you visibly approach them) and take the passage shown in the above screenshot, as you walk past the mutant.
Follow the linear path and walk past the next clinging to the wall. Do not forget to look around for supplies, as you go, to find these mainly on two corpses. Finally, you should reach a corridor with a blazing barrel in it. Wait for one of the mutants to drag a corpse away and continue along your path.
Take a look around in search of two corpses with a filter, plus a standard set of supplies on each one of them (ammo, new weapons etc.). After you have explored this part of the bridge, approach the ladder to the left and start climbing.