This was a long time ago, back at college, but...
Our marine unit had been busted - dishonourable discharges for something that wasn't our fault, so we decided to turn mercenary (like you do).
Anyway, the lieutenant had met up with this guy in Logistics over a few beers (I think the guy's name was Crapgame, or something like that) and found he'd written off a 300dT Fiery class Close Escort just to see if it could be done, and now he didn't know what to do with it. The greatest scam of his life was haunting him daily.
The poor guy had made it disappear on paper, but there wasn't much he could do to melt away four thousand metric tons of hull metal, and he was sh***ing himself every time someone knocked on his office door, in case it was the MPs with some questions about this 'extra' ship that didn't appear on the manifests.
When the Lieutenant persuaded him we could make the thing disappear for good, and give him a share in the first year's profits too, he figured Christmas had come early, so we factored a full tank into the deal as well.
As soon as we were drummed out, we took possession of the ship and headed out-system at full speed. The rest was history.