Unlock every planet:
From "Historical Campaign," select an era then press X, Y, X, Y.
Using the snowspeeder tow cable:
The easiest way to destroy AT-AT's with a snowspeeder requires a CPU co-pilot. Fly up close to the legs of an AT-AT and then pull back on the R-stick to decrease your speed. Begin circling the legs of the AT-AT and eventually your copilot will fire the tow-cable. After a couple revolutions you can switch seats and the CPU co-pilot will finish the job for you.
Tiny units:
Enter "Jub Jub" as your profile name.
