I understand where you're coming from and after reading this I have changed my mind a bit, I still believe it doesn't need a Sniper Rifle, but other than that, the idea is good.
-Support The job is Better than IF Agent job (More Armor and more HP along with a Sniper rifle)
Has the Same sniper as Shock Special Task Force
When SHB is completely under siege, IF and other ground troops usually take care of it (If they didn't have the same Sniper as a SPECIAL FORCES unit maybe I'll change it to a -/+)