Here is the article I think this new capability greatly improve China air borne brigade. I mean Z18 can do this task but too expensive for the job
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China's Z-20 chopper sling-loads all-terrain vehicle for 1st time, can transport 'artillery, drones'
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China's domestically developed Z-20 helicopter can transport a wide variety of vehicles including self-propelled mortars, howitzers, multiple rocket launchers and air defense missile platforms as well as land drones, giving aerial assault troops more tactical options and advantages, experts said on Monday, after the chopper recently successfully practiced sling-loading an all-terrain vehicle for the first time.
An aerial assault brigade attached to the Chinese People's Liberation Army (PLA) 83rd Group Army recently organized flight training that for the first time saw a Z-20 helicopter sling-load an 8x8 Lynx all-terrain vehicle, China Central Television (CCTV) reported on Sunday.
The troops will continue to practice this method of transportation, including nighttime training and emergency management, the report said.
This exercise demonstrated the outstanding performances of the Z-20's fly-by-wire flight control system and its domestically built turboshaft engines, analysts said.
Sling-loading is an important way of maneuvering in aerial assault, as troops can first use helicopters to fly in with all-terrain vehicles, then use the vehicles to advance further, Wang Mingliang, a Chinese military expert, was quoted in the report as saying.