Even though the SFS border defense soldiers purposely made things difficult for them and said that their backpacks were lighter, they didn't stand up and target the SFS border defense soldiers. They didn't say anything bad either. The first thing they did was to bring up the matter with the referee and the military officer. Their principles and stance were quite clear.
The SFS border defense soldiers didn't have any evidence to back their claim and suspected that the Chinese participants had lightened their backpacks. This was very humiliating.
Later on, when the SFS border defense soldiers were aggressive, one could see the anger on the faces of the Chinese participants. Under such circumstances, if they were another country's special forces soldiers, they would have used their fists to tell the SFS border defense soldiers to behave.