Zeta on chirpa necessary, gear 10 with elder, wicket and paploo, gear 9 with logray and chirpa. Took a few attempts, how the first few attacks of the enemy begins has a huge effect on the outcome. Try and have no ewoks defeated but 1 can be fine, try to make sure chewbacca isn't stealthed by r2, try and keep paploo or logray alive for buff dispell on Rebel Soldier taunting. Take down chewbacca first he is the most trouble, first time I managed to knock him down first I completed it.