STINGER lock help !

Hello All. Just a question how with a stinger we can block the target with a missile researcher? HELP

i never shot with this weapon but i think you can only shot in Urban Ops and Battle Group and you can only shot on vehicles

Yes I play in group but I know not the key(touch) for blocker on a plane a missile researcher I knows how to aim but not to blocker help I

I think you need to click a while on the key wich lets you write big .. I dont know the english name of the key.. sorry ^^

than after a time while aiming on the vehicle and clicking the key the weapon is able to shoot ! :)

GOOOOOD ! Thanks you !

Right Click (Zoom) -> Look at an airplane or a helicopter -> press Shift -> Wait until the bar goes red -> Shoot