pointman
/ˈpoʊntmæn/Definitions
1. noun
A member of a military unit who is responsible for leading the way, often to spot and neutralize threats, or to clear a path for other units.
“The pointman was the first to enter the abandoned building, scanning for any signs of danger.”
2. noun
A person who is at the forefront of a particular field or movement, often leading and guiding others.
“The artist was considered the pointman of the avant-garde movement in the 1960s.”