Fully Involved (Bonus): Assist Friendly Forces in the Alien Enclave 0/5.
Rendezvous with the Alliance Force on the Northern Plateau.
Defeat PA-717 Planetary Assault Goliath.
Defeat Zakuul Assault Groups to Secure the Landing Area.
If you wish to have Arcann, do not attack Senya and help her instead. The choices here you make in Chapter I are especially important for deciding if Arcann joins your alliance later on in the story.
You have to let either Vette or Torian die, there is no happy ending where both lives.
If you absorb Dramath into the holocron in this Chapter, he will reappear as a temporary companion in Chapter 9.
Arcann will either join your alliance here and become a permanent companion or you can kill him depending on your choices in Chapter 1.
Koth can rejoin your alliance in Chapter 5 if you allow him.
You can finally kill Koth here if he left your alliance in KOTFE.
Acina will join you as a temporary companion in this Chapter.
You can kill off Saresh and Lorman here in this Chapter.
You can kill Senya here and remove her presence from the story.
Otherwise you can kill off Arcann in Chapter 6.
If you want to recruit Arcann as your companion, you must spare Senya and let her heal Arcann.
I don’t know if you can get Senya/Arcann back this way, will need to double check.