Artie identifies the cannon as belonging to a pirate, Black Barty. Bartholomew Roberts, known as Black Bart after his death, was the most successful pirate of his time. Between 1719 and 1722 he took more ships, if not more booty, than any other pirate.
The code on Steve Jinks screen reads: "Steven Jinks (W13 Agent NXN43772632-30032). Murdered by Walter Sykes."
When Claudia retrieves Steve's last message from his lighter and hears him say "Keep the faith," tears are digitally added to her eyes.
It would take weeks maybe months for Pete and Myka to get authorisation to carry their firearms in China. So unless they bought them illegally or had contacted the Chinese government three weeks before boarding their flight they couldn't have live firing guns
5-27-22 PEACOCK is combining episodes 11 and 12 twice.