Everyone
At least BOD 3, WIL 3
Some investment in REA
Some method of reliable initiative boosting (can be EDG 7, but that is less reliable/riskier)
Street Sam
One really good ranged skill
One really good melee skill
Decker/Face
Something active to do in combat, whether that's Commanding Voice, gun skill/grenades, or consistently being able to hit Marks on guns to eject clips (bricking guns starting with 0 Marks when combat starts is not feasible) [this is easier if your face, or more rarely your decker, is also a mage]
Mage
Heal.
Spell that can do stun
Spell that can hurt drones
Area distraction-y stuff to avoid fighting if necessary