Alternative Phase 1 Teams?

1-Nightsisters
2-JTR bb8- baris- resist trooper -rey
3- Jawa team
4-Ackbar(L) - CLS - Han - Unmasked - Maul
5-Thrawn - death - magma team

Can someone explain how team 4 works and zetas needed. I have that team all high level and many zeta’d but I’m not seeing how it works.

nightsisters %1- %2 dmg
jtr team %3-%5 dmg
jawa team %1 - %2
ackbar %2 - %3
thrawn %2 - %3

team 4 cls and han zeta, unmasked for empire tank, maul for high damage or u can use thrawn also

cls and han use double damage if any char use not attacking ability. check ackbar leader special