Why did a Chinese bomber carry a nuclear-capable missile in an anti-ship exercise?

The People’s Liberation Army has unveiled the first official footage showing a nuclear-capable air-launched ballistic missile, the Jing Lei-1, mounted on an H-6N bomber in combat-ready status during a joint anti-ship exercise.
The strategic bomber was seen in flight, carrying a massive missile under its belly, in the final episode of the documentary Securing Victory, which has been airing on state broadcaster CCTV as part of the celebrations of the PLA’s 99th anniversary on August 1.
While CCTV...