Clear you still don't understand enough about AD and
artilleries.
Are you aware what the definition of SHORAD and V-SHORAD AD systems
are? You can name the few system, but are you aware of the range !
These are very short range system, that mean they are deployed with
the units they are defensing and protected by that unit.
Those system you mention are all amoured and tracked, why ? they
are tracked to be able to keep up with armor unit and armoured
because they can withstand light arms and artilleries attack. Even
if you use FH-88, unless a direct hit or special any armour rounds,
you cannot do serious damage. Also, once you open up, counter
artilleries will go after your FH-88s. Using Artilleries for Sead
is not say never, but in most general cases, you don't waste your
artillery that way.
Next SpecOps again !!! What you think they super human again ! The
SpecOps will still lay low and call in SEAD planes to take out the
ADs first then guide the other planes to take out the amour
units.
It is easiler to send one plane ahead, so enemy will switch on
radar to engage it while the next take it out. That will soon leave
enemy without ADs and other planes take out amour units.