In the last vassal tourney which included wave 3, I ran Ackbar MC30s with just tycho for cover, and I was able to utilise speed and a well timed Tycho to dodge pretty much all squadron fire.
The fundamentals remain, kill the carrier kill the squads. If you run with this concept, its very easy to attack from outside red range, with either speed 4 or speed 3 and engine techs, to one shot many ships. Squadrons are good, but they can be dodged with relative ease, even Rhymer. Its just requires a more flexible mindset. Spread the play out, make them spread. Once you prevent them using a ball against you, imperials squadrons become significantly weaker.
Most times Tycho didnt even die. Just acted like a sheep dog pushes squadrons away from my fleet or preferentially towards Admonition.
If you want to run your ships in a tight formation, and dont have lots of hull or other damage mitigation measures then you will need squads as you are predictable and weak to squads. Play with a free style and its much harder for players to bring lots of firepower against you in one place.