Earth in Star Wars,

 prologue 

This one stands at the height of 10,7 feet tall and weighing around 450+ pounds it is armed with 2 light cannons that shoot bullets, the size of a beer bottle and it's well armored and powerful. It's mass produced across the military and widely used and favored they are linked to a central command somewhat to the CIS droids during the Naboo blockade, but if the central command is ever destroyed or captured that link is immediately severed, and given to the highest ranking commander also has a high combat effectiveness rating and these things are really strong as well able to lift 200+ pounds with ease also it has small missiles around 80 each

Now for the anti-aircraft class robot

Standing at a height of 5,11 feet tall they are armed with 8 missile launchers that shoot anti-aircraft missiles at the speed of hyper sonic levels, and those are extremely mobile and powerful. It's also extremely agile for the missiles at least, and these robots are given 2 light cannons and a jammer, to prevent it from being found by scanners and enemy tracking, it also has a Camera to provide feedback to central command. Unlike with my infantry class, it can be given command to the highest ranking commander in the sector

Now for the assault class robot

Standing at a height of 20 feet tall it is the tallest and heavily armored, and well armed it is armed with too many guns that shoot 100 rounds per second and it has missiles flares and is the most powerful but it's strictly used during high stakes, missions or battles they are rarely ever seen and when you see them, it means it's going really well or really bad it also weighs around 10 metric tons or 22,000 pounds

Now for the special forces