Restock on ammo and explore the area for some extra Power Nodes and a Seeker Rifle spec. Soon you'll encounter a new enemy: The Pregnants. When killed off they will release smaller Necromorphs that you will need to swat off to keep from taking damage.
Purchase a few new items from the store and clear out any smaller Necromorphs that might be remaining on the walls. You'll also find a locked door near a Bench. If you have spare Power Nodes feel free to unlock this door and plunder the items.
You'll now be a room with little gravity and a blazing fire below. Your objective is to actually remove the oxygen from the room to quell the flames. Locate the first to modules on either side of the room and remove their batteries. Next, float up to the top and remove the third from the above structure.
The oxygen will cease, putting out the fire. However, you only have two minutes of survival in this condition. Return at least one battery to a module to restore some breathing room.
Kill the Lurkers ahead and pick up a spare battery from the oxygen tanks. Proceed down the next hall and use your battery to repair the elevator. Get ready as you open the lift, as a Puker will great you with its foul spray.
Decimate this Necromorph and descend down to the bottom. You'll come to a supply room with a large amount of ammo and some Power Nodes. However, it's all filled with Stalkers. Power up your stasis and kill each of this quick enemies one at a time.
Continue onward and you'll meet with Ellie. She's very accurate with her weapon and will be able to clear out most of the Necromorphs. Give her some aid from the other side of the room and meet up with her at the gate.
Stop to pick up a Pulse Rifle ammo schematic and take down the various Necromorphs prowling the area. After defeating these enemies you'll arrive at the school and daycare center.
You'll witness some sick sights around this area, as Sprawl inhabits aren't able to part with their Necromorph children. You'll soon arrive at the school's auditorium where a play is being set. You'll be swarmed by Packs, Lurkers and Slashers. Due to the high volume of enemies you should clear out the first waves with the Detonator and Line Gun, then switch out to the Ripper as the beasts get in close. After the fight keep exploring the school for a Flamer schematic and some Power Nodes.
After a meeting with Nicole, you'll once again locate Ellie and Stross. Ellie will once again hold her own, but you'll still need to fight off the forces on your own level. You'll encounter the powerful Brute Necromorph. Stasis it quickly and chop it down with the Ripper.
Head through the next passage way and trip the laser mines by shooting at them. There are a few Guardian Necromorphs on the walls. Stasis them and blast the tentacles that emerge from their hole. Locate the elevator and ride down to conclude the chapter.