Fishy Business starts with John Brown during Saltwater Cambozo. Look for the warehouse with the grinning shark sign, fight through to the back office, and collect the ledger disguised as a crate of herring to earn 1 Prize Token.

How to start Fishy Business
Talk to John Brown at the hub once Saltwater Cambozo walkthrough is active. He points you toward a suspicious delivery at the docks.
Because Imported Goods unlocks in the same mission, Saltwater Cambozo is one of the heaviest side-job checkpoints in the game.
Walkthrough
Find the shark-sign warehouse
Move through the dockyards until you see the building with the grinning shark sign. That is the right warehouse for Fishy Business.
Clear the inside route
Fight through the enemies and head deeper into the building instead of following the main mission line straight out.
Reach the back office
The side-job handoff happens in the back office, where an informant gives you the ledger hidden inside the supposed herring shipment.
Once you interact there, the job objective is secured and you can finish the rest of Saltwater Cambozo normally.
Rewards
The reward is 1 Prize Token after you turn the evidence in to John Brown.
Fishy Business is short, but it is still worth doing on the same pass as Imported Goods so you do not have to rely on replay cleanup.
FAQ
Is Fishy Business in the same mission as Imported Goods?
Yes. Both jobs are tied to Saltwater Cambozo.
Do you need to search every crate in the warehouse?
No. The key interaction is in the back office with the informant and the disguised ledger.