I suggest this formation:
Jurgen
Coriel Tao
Milo Ashur Mira
Airlys
That is, so that someone relatively strong covers the squad from the front and back, the most vulnerable members of the group are in the middle, and someone who can defend, if necessary, is on the sides. And if desired, they can be swapped, that is, swap Airlis with Jurgen or Coriel with Ashur. What do you think?