Wishful thinking.
Name 1 weakness the support specialist has.
And by "weakness" I mean "an enemy that's damn near impossible to kill" instead of that wishywashy "strength" of being able to combine weapons to cover both close- and long range.
Play with the hunting shotty only then.
That's kinda funny, you tell me to name 1 weakness, then answer it yourself.
But anyway
Rate of fire, reload speeds, no long range, ranged specimens, expense.