Then, you should bring your household registration book, admission notice and so on. These things must have been mentioned in your admission notice.
Secondly, don't worry about the warm, sunny and dry weather in Kunming. You don't need to bring a cotton-padded jacket or down jacket. You don't need that thing at all. People are now 25 degrees Celsius+. (The weather in Beijing)
In addition, the items for military training are the same everywhere, such as sunscreen, disposable underwear (if it is not military training on campus, it should be on campus), kettle, washbasin, various cosmetics, facial cleanser and clothes change. The most important thing is actually only one word: money.
Finally, congratulations on your admission to Gong Kun University. It's actually a very good school. It's strange why it's unknown outside. Please call me again if you have any questions.