All solutions are from my playthrough and experiences may change, if your playthrough does not match comment why and I will edit
*** Spoiler - click to reveal ***
Starting off this chapter the team meeting with Alfred
Have a section where you staple your wound
Waller will call, she asks for Joker and the Virus to be turned in
Joker hands over the virus and defuses it. Alfred warns Bruce about Joker in the future
Call An Agent of your choice I believe (I choose Avesta)
Show up to see them, gain blackmail
Waller shows up, flourishes her team ;)
Waller comply, Joker appears dialog
QTE section
You will have to choose on blocking explosions either going to Catwomen or Avesta
End of Chapter