Gameplay video of all 3 difficulty levels
Team: Spider, Leia, Probot
I chose Leia as the humanoid because her Triple Shot is both deadly and efficient for missions. I chose Spider as the beast because his special only takes 2 bars to charge up in case I need to use it multiple times. I chose Probot as the droid only because I don't use him much, so I thought I'd take him out for a spin.
Initial Rewards: 3 Gems total
Here are the results from playing all 3 difficulties in a row for the first time. I'm not overly impressed with the lack of gems in the latter 2 difficulties; I hope this isn't another example of LucasArts false advertising (remember the promises of getting new beasts or droids in other special missions?).
Normal Difficulty: 3 Gems
Heroic Difficulty: 0 Gems
Epic Difficulty: 0 Gems
Here are the rewards from subsequent forays into this mission.
Temporary bug didn't display stats, but this was 1 gem