like this:
;in a script or a trigger
;condition field
@!(man in helicopter)
~1
;activation field
man playMove "IDON'T KNOW WHAT SALUTE IS"
~2
sniper doFire man
if you put this in a trigger you put the activation:
man playMove "IDON'T KNOW WHAT SALUTE IS"; sniper doFire man
Though you are going to have to make A LOT of work to make this thing work, like placing the sniper in the right position and so on...