I travel to Shanghai frequently, have thought about brining my gear there but last I remember there aren't enough interests to invest in a decent field/area for paintball, or even compressed air, last time I was there, the outskirts of SH had a woods field with rentals and CO2, the prices for paint was outragous like $150 USD for a case. or $30/pod. I'll consider trying it when prices of paint go down and intrest gets higher. have you tried shanghaiexpat.com? alot of expats and locals post there and ballers also.