14 Broken Wind
Schlock Mercenary book 14.
"Think of it as a great, big can full of sky...You could drop Mars into that can, and then tuck Luna and Europa in on top."
The Toughs have taken a small contract in a very, very big place. It's just the sort of mission Captain Tagon excels at, but his gunboat isn't answering to him, and his command chain includes the outed spy who stole the gunboat, the retired general who took it for a joyride, and the disgraced major from whom it was stolen in the first place.
With air on both sides of the airlock, it's tempting to start throwing people through it. They'll fall for days, provided nothing with wings decides they look tasty...