From the narrative from our Special Forces Warrior, here is a quick brief on the Army Special Forces makeup, centering on the A Team concept:
The Support Battalion has the MI Company in whatever configuration it is currently in (it changes often), a Medical Company, a Signal Company, and a Rigger Company. Their functons are obvious.
The MI and Rigger Companies go through various reorganizations from time-to-time and you may want to confirm this. Line battalions are organized conventionally with a HHC type thing.
There is more commo and medical stuff naturally along with a SCUBA and engineer activity to support SF's unique activities. 1
These missions are strictly Special Forces. Psyops and CA can be done, and are. But large-scale stuff is done by USACAPOC. 1