Restore power to the bridges
Hiding behind the column cut off the tentacles of the two creatures blocking the hatch, then dispose of their children using the line gun. You can use the Store, Save station and the Stasis recharger or just check the nearby lockers. Get through the hatch.
The tunnel has no gravity, so you can just dodge obstacles by jumping around them. On your way through the tunnel you will encounter some necromorphs.
Jump in front of the control panel and use kinesis to flip the switch. There are two crates here as well as a Stasis recharger. Look up and jump back.
Two fans block your way, you will need to slow them down using stasis. You will have to jump under the first one, but you can just run under the other. Leave the tunnel and check the locker to get Large med pack.
Take the Marker to the Pedestal Chamber (2)
Another familiar necromorph will pop up - slow it down with stasis, shoot it in the groin to sewer the limbs from the body. You will get a Power node for killing it. Save the game and get back to the Marker.
Open the bridge, slow it down and move the Marker. Only one more gate left. Activate the terminal.
Repeat the sequence in this room, but look around carefully - there are some lockers here (including a one with the Power Node) and containers.
Before moving the Marker an inch forward restock on ammo by looting the crates, then pull the Marker to the end of the platform killing the enemies on your way.
Once you get to the end of the rail activate the console, watch a brief cut-scene. And leave through the door leading to the shuttle. Watch another cut-scene - that's not the end of your problems.
Return to the shuttle
Heading towards the shuttle check all the lockers (including one with a Power node) and containers. You will also reach a small storage through which you will get to the familiar room with the Upgrade bench, Store and the Save point. One more fight left, so:
- sell all the useless items
- restock on Plasma energy
- Don't be cheap when buying the Med packs;
- upgrade the Plasma cutter and your suit (RIG) to the maximum. If needed, buy additional Power nodes;
- save the game
Aim for the yellow spots around the mouth. Keep moving, especially when the monster flexes preparing to hit you. At some point you will be grabbed and will have to end the first part of the fight from a rather uncomfortable view.
In the second part of the fight aim for the yellow cocoons. Additionally, throw the exploding barrels at it using kinesis. After the last cocoon is gone, the monster will die. Get to the shuttle and watch the final scene.