Exit the tram. Pick up the audio log and ammo from the waiting room. Enter the corridor. There is an entrance to restrooms to your right, past the corpse, where some ammo, crates and Medium Med Pack can be found. At the end of the corridor there is an elevator. Use it. Grab the Contact Energy Schematic and smash a crate. Proceed further through the door.
Grab the ammunition and listen to Hammond, then smash another crate and continue moving forward. Enter the door to the Atmosphere Control. There is a Save Station, Store, and a panel in this room. Exit to West Growth Camber, then walk the corridor and enter another door. There are two panels along the wall, as well as two open doors. The second door leads you to a small storeroom with an Upgrade Bench. Reach the crago lift and go up.
Move on and enter the West Growth Chamber. To your left is some ammo, to the right - a crate, a bit further - a panel. Move to the opposite side and enter the unlabeled door. Go on and kill the creature. A crate is in front of you. Exit through the door in which you came here and move forward. Enter the door to Inner Greenhouse A. There is another poisonous creature and some ammo here. After finishing the monster, exit the room, then move to the center of the hall and use the cargo lift to go to Level 3. Smash some crates, pick up a Ruby Semiconductor, and use the lift to get down to Level 2.
Turn right, grab the cash and proceed to Hydroponics Control. A panel and another air poisoner await you. After finishing business here, head back through the door and walk to the opposite side. Enter the door to Refrigeration West, open a crate, use the Save Station and proceed forward. Move through the corridors until you reach the Refrigeration West itself.
Loot the panels and enter the middle of the room. Shoot a crate, pick up its content with kinesis, then jump to the right wall. Open the door using kinesis. Jump in the room, then to the opposite wall and open another door. Jump in and then to the ceiling of the corridor in the wall. Walk out through the door. Proceed to Air Filtration Room. To your left is a crate and to the right some ammo . Go left, pick up an audio log and use the cargo lift to go down.
Shoot the plasma circuit. There is some ammo and a Stasis Recharge. Proceed through the left wall. Watch for the bursting flames and move only when they have disappeared. Shoot a plasma circuit, enter the door and shoot another one. Proceed in the same pattern until you reach another poisoner creature. Kill it and enter the cargo lift.
Smash a crate, open another one and enter the small cabin. Pick up a Power Node, Medium Med Pack and open a panel. Proceed back, past the cargo lift. Enter the elevator and use it. You are in the West Growth Chamber again. From here, go back to Atmosphere Control.
After using the Store and Save Station (or not), leave to East Grow Chamber. Pick up the text log. Enter the door. The room to your right contains an Upgrade Bench, the next one - a crate. Third room can be opened with a Power Node and contains some ammo and a crate. Use the cargo lift and go up. Enter the East Grow Chamber.