Chewy (taunt and self heal) Poe as back up if he falls)
Leia (damage, crit bonus, save stealth for when health is low)
Rey (damage, damage, damage, forsite keeps her alive)
Back up damage (FOTP, Sid, or maul if one falls)
Barriss (leader, healer can't beat extra health and mini heal on attacks)( back up heals JC)
Lumi (damage/heals) use ability block when needed.
I kill damage dealers first, Sid main priority. I leave tanks and healers for last. Then I just use primary attacks to take them down because this gives my cool downs a chance to cool down. Chewy's self heal, leia's stealth, and Ray's insight keep them alive. Use group heals to top off team. I don't have to go to backups to often but sometimes I do. Taunt as soon as you can and kill damage dealers first.