I received some feedback that a few people may not have Selphie or Laguna, plus I realized I messed up my call abilities on my first run
Sooooo here's a better refined and much much more straightforward run with just Kam'lanaut, Garnet, Penelo and Cissnei
Setup
Party 1
Kam'lanaut FRBT (Raines LDCA). The call ability here is mandatory
Garnet BT+ (Leo LDCA). If you don't have Leo just use your best party damage boosting call
Penelo (Seymour LDCA). Penelo can be swapped by anyone you have that can charge force gauge well such as Braska, Ignis or Krile. Seymour LDCA can be swapped to any other call that debuffs HP damage Up. Penelo is at Force level 13
Party 2
Cissnei (Kurasame LDCA)
Any other two random characters, they'll never do anything.
Timestamp
0:00 Setup
Reset until Garnet and Kam'lanaut goes first. Penelo doesn't matter.
Setup both BT+ and use base Raines call to pull Penelo back.
1:48 Disco Time
Penelo dances and uses CA until force and summon meters are full. Then swap her for Cissnei, use AA and CAs and then summon