Reward: 15,000 Survivor XP
With time running out, you must help whoever you can.
Locate the People Who Can Take You to Sector 0
Cross town and look for some smugglers who can help you. Their contact is on the upper floor of a building in the slums. It’s well marked, so you won’t have trouble getting there. Knock on the door and talk to the man who opens it.
Wait for the guy to make a call, and then talk to him again when he opens the door. You make the necessary connection! Now head for the next waypoint. It’s a tunnel that leads out of this section of Harran. To get there, swing wide along the left side of the map and then approach the tunnel (coming at it from the right side of the map is less practical).
The actual entrance is on the overpass, so get up there right away. If you’ve unlocked the Grappling Hook through your Survival Ranks, you can use it to get up there from the ground without any extra trouble. Proceed to the end of the tunnel and use the door on the right to enter the sewers.
There’s a closed door just inside the entrance. Knock on it and make contact with your guide, who takes you into the next section of the sewers, where several other survivors are waiting to travel to Sector 0. Follow your guide to the next area, talk to him, and then wait for one of the men to open the route below you.
Jump through the narrow opening and get into the water. Follow the tunnel until it opens up, and look at the walls ahead and above you. There’s a yellow pipe on the left wall. Swim halfway along that wall and then jump up to the pipes. Take the yellow pipe over to the corner and leap up to a small walkway. Make a careful jump from there to the other side of the room, then enter a sewer pipe.
Follow the marked arrows through the next portion of the tunnels. Keep a good melee weapon ready, because the way might not be fully clear. You soon make it to an exposed section of the pathway where some Infected are congregating. Climb up to the walkway above to avoid most of them, and loot a Double Barred Shotgun from a dead body up there. If possible, use rifles here to do your fighting. There’s a wealth of rifle ammo coming up soon.
If you have a Grappling Hook by now, this is a very easy section to get through without causing trouble. Stay above the enemies, use your ranged weapons to thin their ranks, and kill the Goon at the end of the path before hopping down. There’s a valve at the other end of the route that accesses the next area. Don’t open it until there aren’t any Biters nearby. There are also some Virals here (one in the open area and another in the blocked tunnel). Be prepared for them, and also for a Bomber. You can get the Bomber to blow up safely while the tunnel is still closed off, and that’s probably a good idea.
After you use the valve to unlock the tunnel, open the gate and kill anything that’s left on the other side of it. Advance, but ignore the arrows you come to for a moment. Clear a small group of Virals and Biters from the tunnels, and walk forward to find a room with a major stash of ammo and some components. Make sure to look for this before going back to continue along the marked pathway.
The arrows lead from the Viral’s room up to a walkway. Jump to the pipes and then again leap to the catwalk. It wraps around into another chamber, where a Toad is lurking. Hop into the room to kill the Toad, and then use the yellow pipes to get up toward a hanging ladder. Jump onto that and pull yourself up to the next catwalk.
Enter the adjoining room. There aren’t any enemies here, so you’re left to freerun in peace. Anyone with a Grappling Hook can zip across the next bit without delay. Otherwise, you must cross a narrow beam to reach a second section of the walkway, and then jump from there onto the yellow pipes across the way. Use those to traverse the area. Before doing this, however, loot the chest in the first part of the room, on the ground floor. There’s never a good reason to leave loot behind!
Get into the next pipe and walk/slide forward. You get a friendly call from your guides, and then you’re left to your own devices again. Use the valve ahead to unlock a grate, and then open the way forward. Dive down into the water below.
Survive the Ambush
Stay along the floor of the submerged area. There are gunmen above. They fire at you either way, but fast rifle bullets tend to break up on impact with the water, so they have almost no penetration. You avoid most damage if you stay on the bottom. Try to get to the surface and you’ll end up looking like a hamburger.
Swim through the pipe on the far side of the room and descend. The room at the bottom is empty for now, and you can pull yourself out of the water onto a walkway. Get your best rifle armed, then creep through the next room. There are a huge number of Rais’ men nearby. They are all armed with a rifle of their own, so melee is out of the question unless you’re built for good stealth kills and are confident in your abilities.
The safer way to clear this room is to sneak in, use surprise to gun down the first guard or two, and then to crouch, use cover, and pop out to keep burning down the rest of the men who surge forward. Some come from inside the room, others pour in from a door to the left. Don’t worry about your ammo count; there are enough enemies that you can fully resupply yourself when the fight ends, even if you used every single bullet you have.
A room on the right has some minor medical supplies, but the way out is through the room on the left. Follow the arrows to get out of this dank hellhole.
Get to Sector 0
You soon come to a ladder that leads to dry ground. You’re in a basement somewhere, but least you’re out of the waterways. Pick the locks on the side chambers ahead to get more components, then proceed carefully and quietly along the main path until you reach a courtyard higher up. There are guards talking there.
Take aim carefully and murder the three thugs standing together. With a good ambush you can kill all of them before they return fire.
There isn’t much good stuff in the yard. Jump and pull yourself up to the balconies that overlook the area, and follow the way around until you get to the rooms across from the entrance. A side set of offices has piles of Metal Scrap to loot. The other door leads to stairs up (and the way out). Crane can call Brecken and report in once you’re up in this section.
Climb the stairs that lead out of the building and into Sector 0. You made it! Survey the area and make a few calls.