I like to use force push
It's hard to master but once you learn to thrown the missles and lasser blast at the AT-ST, you'll make short work of it.
Heres what I do...
1. Kill the regular Reborn out in large Hanger area.
2. Then get the 2nd Reborn (force user) to follow you back to
the room where you got the checkpoint. Then you can finish
him, without having to worry about having your back being
exposed to the AT-ST.
3. Take out you lightsaber and make sure, your force powers are
fully charged, then go to the 2nd set of doors leading to the
large open hanger. Stay in there, toward the right wall, line
up your crosshairs on the AT-ST and wait for it to start its
attack. Your lightsaber will absorb the Ion blast but you need
to (FORCE PUSH) the missles in its direction to kill it. Just keep
Pushing the Missles back at the AT-ST and side steping to
Dodge them if you think the missle will hit you. Repeat this until
It is destroyed.
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