Assault Battles Challenge Tiers (T2 and T3) Poor Design and QoL

For Sith vs Jedi i only played CT3 by hand, rest on full auto:

For Trooper and Empire versions i always use the same team, again only CT3 by hand and rest full auto:

My NS or Phoenix are G12 at best so i can't say anything about those events.
I'm not a whale by any means, just playing for over 4 1/2 years now. You'll eventually come to the point where you don't need to spend hours for a single event anymore, just keep going and hope for improvements.