A: Captain the ship is being drag into the ocean!
B: How deep we’re in now?
A: 4,500... 4,800... 5,000...
B: Dear lord, that’s over 150 atmospheres of pressure!
A: How much can the ship take?
B: well it’s a spaceship, so anywhere between 0 and 1 -- Anon Guest
The good news was that the superstructure was holding up. The bad news was that it wasn't going to continue doing that for long. They were sinking fast and air balloons weren't going to work to refloat them. This required some very quick jiggery-pokery.
"Rerout the feed to the floater envelopes from the synthesisers and pump them full of simple hydrocarbons. Get everyone into their battle livesuits." Captain Bae was already buckling on their greaves. Everyone had theirs ready by their stations, and a spare by their sleep niche. Bae sounded all alert with the same instructions.
Engineers were scrambling, one team per floater envelope. Bae could only get in their way and stress them out even further. When it came to doing a good job to survive, Bae considered the best motivation to be 'tomorrow'. As in, living to see it with everyone else.