Awesome work! Been using this mod for a while and I think it's great that it adds PLA units to the game. Just a little cosmetic error I wanted to point out on the Z-20 helicopter, since I saw the model in the pictures above has the front windshield divided in three parts like the Blackhawk, but the Z-20 has it divided in 2 parts only, and it also has a little conic thing on its nose.
Here is a ref picture I got from the internet
other than that it looks great. Keep up the good work!