To move forward, leave the Tower and climb the marked building so that you can make a call back to the GRE. Complete that and get back to ground level to look for one of these airdrops.
Look for the Airdrop in the Cauldron Area
The waypoint sends you into an area with tight buildings and low visibility. It’s still light out, so at least there’s that, but you can easily get ambushed here if you don’t pay attention. Listen for movement as you approach alleys and other tight spaces throughout the Cauldron.
The box that you’re looking for is way up high. You might spot a remnant of red smoke around it, but either way you need to get to the highest point in the area, near the very center of the circle. Climb all the way up until you can see the rooftops on every building, and look for a large, orange container. Walk over to that and open it.
At that moment, a plane passes overhead and drops off two more of the containers. Race off in search of the nearest one. It’s only a minute away from the Cauldron. This isn’t a timed section, but try to make fast headway despite that.
You’re beaten to the location by some unfriendly people, but they won’t attack. Go around the dropsite and immediately change course for the second container. You might still make it there in time!
Night is falling. Go as quickly as you can through the area near the docks. Like your search through the Cauldron, the waypoint here isn’t shown. You need to find the container for yourself. Or, if you’d like some help, look at this screenshot to see where to go on your map.
Go to the upper-right side of the docks and kill the zombies that are staying close to the dropsite. Equip your best weapon and ready it, and make sure that your item slots are filled with thrown weapons and UV Flashlights. Open the container and watch the scene that follows.
Virals and Volatiles Stalk the Night
You must return to the Tower after the scene ends, and you won’t have a safe or simple journey this time. Not only is it dark, but you’ve already been spotted by a number of more powerful Infected. Running is only part of the solution, because these are fast movers that can climb, track you, and fight hard. It’s going to get scary very quickly.
Use the UV Flashlights and your Throwing Stars/Knives to distract and damage the deadly Infected that are on your tail. Firecrackers are also effective here, as long as you have several to spare. Throw them off to the side as you flee. This distracts the Volatiles and Virals that are pursuing you.
These two types of Infected have much in common. Volatiles avoid break areas, while Virals can go anyway. Otherwise, the two are both fast, can dodge, attack aggressively, and are able to climb, crawl, and avoid most obstacles. Height won’t save you from them. The night offers no solace, and this outbreak keeps getting worse!
Sprint back to the Tower, but constantly look for traps to leap over, holes in walls to creep through, and anything else that can break line of sight with your enemies. Get far enough away from the horde and you won’t have to kill them. Try racing down the main section, through the harbor area, and leap over a few traps to slow the enemies. The zombies may lose sight of you and will discontinue pursuit, making the rest of the trip quite manageable. However, one wrong move and you’re probably dead.
Once you’re in the Tower again, go to the headquarters and look in on another meeting. Your mission completes and you start the next stage immediately afterward.