Order 66 is an event that activates randomly via prompt in the Cantina. The user will have no idea when it will begin, but when it does, it will force the user to fight (Retreat will be possible). The battle would consistently of three rounds:
Round 1 is 5 assorted clone soldiers.
Round 2 is 5 more clones including Fives's as boss.
Round 3 will include Anakin and Sidous flanked by two royal guards and Rex.
Rewards will be Jedi shards, crystals, mats, and high level gear.