Okay, so yes, I did miss Hydroraven editing his post for the attack, but unfortunately for you guys at the moment, farothel is correct, the damage is ignored due to its immunity after rolling defense.
:
9d6t5 4Attack is reduced to a 9DV which is in range of immunity.
On the other hand, you are
not completely helpless against it.
Street Magic p.94
Attack of Will
An attack of will may only be conducted with a physical
or astral melee attack—willpower simply doesn’t work with
ranged attacks. Sometimes you are better off trying to smack a
spirit with a gun than attempting to shoot it. While an attack
of will can damage a spirit in spite of its formidable resilience
to non-magical attack, only the truly courageous, driven, or
mad have enough force of personality to affect a spirit.
When in melee with a spirit, a character may elect to
make an attack of will rather than a normal melee strike. The
character rolls his Banishing + Willpower (or just Willpower)
as his dice pool, and his base Damage Value is (Charisma)P
regardless of whether he is attacking with a spanner, combat
axe, or his bare hands. Reach modifiers (attacker’s or spirit’s)
do not apply to this test. The attack of will bypasses the spirit’s
Immunity to Normal Weapons and is otherwise resolved as a
normal melee attack (see p. 146, SR4). This form of attack is
only effective against spirits.
On the drone front, O'Conner's attacks destroyed the two menacing him, there is still one each for Clem, Snow and Torley.