The location and the activities in the exercise are important, though. Portions of the hotly contested South China Sea are claimed by a few nations, including the Philippines, China, Malaysia, Brunei, and Taiwan. If China were to try to edge other countries off their claims by force, this is the exact exercise they would need to do to get ready.
And the Chinese marines do look good in the video below, working with landing craft, tanks, and air assets to quickly take and hold the island alongside their Russian counterparts in green. See more footage of them in the full video from War Leaks below: