Attack on the wookiees?

Kashyyyk is incorrectly portrayed, there’s supposed to be overcast during The Battle Of Kashyyyk. 
also when can we see: 
 

1🙂 Overcast on Kashyyyk 

2🙂 Drivable HMP Droid Gunships/Transports

3🙂 Drivable AT-APs

4🙂 Double player drivable HAVW A6 Juggernauts