Are they trained in minor subjects/revised tactics or are they actually trained in PLA combat tactics? If the latter, what if one of them goes out and writes a handbook of PLA combat strategy for a Western country in exchange for a couple million USD? That is a level of trust that I am not comfortable with. When top militaries sell physical hardware that is incredibly hard to steal to allies, they still tend to dumb them down for national security reasons. The Chinese military trains droves of foreigners in information that can be directly used to counter the PLA should even one soldier be bribed for it?
It would depend on country. If it is a non-ally, they would be getting the basics they paid for.
If it’s an allied country, it would be real tactics training, but it would likely give them not much info on how to actually fight *like* the PLA, just comprehensive training on how to fight *alongside* the PLA.
China used to train the Vietnamese army, which made them successful at fighting together with PLA logistics and intel support. But when Vietnam turned towards military adventurism, that training didn’t prove much useful against China itself in 1979.
I would assume it’s a similar deal here.