They have the two main walkers to assault the objective but they don't do anything to help the First Order so in a way they are just visual prop becuase theres no option to use them like the AT-ATs on Hoth for example. They have the First Oder AT-STs you can use but the large gorilla walkers you can't at all. They have gorilla walkers in the back round too though but those are just for visuals.
The hit boxes for the speeders are very messed up but I hear they have low health so easy to kill if you can deal with their speed
