MOS 35F in the U.S. Army refers to the military occupation specialty of intelligence analyst. The primary functions of an intelligence analyst are supervising, gathering, analyzing, processing and distributing tactical intelligence.
Intelligence analysts often assist combat commanders and provide intelligence products for them. They analyze incoming information and determine what is valid or pertinent for further dissemination. In short, intelligence analysts sort out information and try to make sense of it from a tactical perspective.
The U.S. Army stipulates five skill levels for intelligence analysts to work through, culminating with a supervisory role. Candidates for MOS 35F must meet a strict series of guidelines, including no criminal offenses outside minor traffic violations, and no immediate or spousal relatives residing in countries known to use physical or mental torture against supporters of the United States.