Target Number Modifiers, How bad can it get? Options

[RedmondLarry]

Last night in a fight
I fired my weapon at extreme range (TN 9)
with my 6 boxes physical (+3)
and my 6 boxes stun (+3)
While astrally perceiving (+2)
and maintaining 3 spells (+6)
I ran over difficult ground (+6)
to where I was behind 75% cover (+3)
with 5 melee or blocking opponents within 1 meter (+10)
against a target who had run (+2)
while invisible (+8 )
and concealed by a spirit (+6)
and in complete darkness (+8 )
to behind a car providing 75% cover (+6)
whose exhaust covered him in heavy smoke (+6)
but whose headlights glared at me (+2)
so I made a called shot (+4)
even though I had to default to attribute (+4)
to fire my vindicator minigun's
15 shots with no recoil comp (+30)
though dwarf am I with heavy weapon (+4)
in my off hand (+4)
while confused by a spirit (+6)
in a Chaotic World Spell (+6)
facing a Flash-Pak (+4)
after the HMG in my right hand (+2 dual firearms)
had missed someone else (+2 second target)
with its 10 uncompensated rounds (+20 recoil).

My GM said, OK, TN 166.

My highest roll was a seven, so I asked my GM
if I could use a 1st edition rule, pretty please.

He said OK, just this once.

So I spent two Karma and purchased a success
and blew the sucker to kingdom come.