Anyone having issues beating the last Jaxxon Era Challange Tier VI mission?

I got Jaxxon up to lvl 120 to complete that event. I have maxed out support units who are currently 114, and I am having terrible luck even making it through the first volley of attacks. My typical lineup is L-Dash, lando, Han, Chewy, and Jaxxon. If I don't use Han I don't get to attack before Jaxxon is the only one left. Any suggestions on how to beat it before the challenge ends would be appreciated