Charley
VC
Vietcong
ancestor
announcer
antecedent
avant-garde
bellwether
buccinator
bushfighter
casual
explorer
forebear
foregoer
forerunner
front runner
frontiersman
fugleman
groundbreaker
guerrilla
guide
harbinger
herald
innovator
irregular
lead runner
leader
maquis
maquisard
messenger
partisan
pathfinder
pioneer
point
precedent
precursor
predecessor
resistance
resistance fighter
scout
stormy petrel
trailblazer
trailbreaker
underground
underground fighter
vanguard
vaunt-courier
voortrekker
confederate soldier
rustic
cattleman