Destroying convoys in PVE

How do i destroy convoys in heli PVE? gepards effective range outrange my mi-4 agms easily, if i sneak up on them with rockets my heli gets shredded the second the gepards turn their turret. even if i try to capture a point or attack anti-tank attacks some convoy is gonna snipe me from half of the map

The falangas have enough range at 4km, you just need to be careful not to float to ~3.25km where they open fire.

It’s way harder in helis that have 3.50km missiles like AS.11 but it’s still possible

Me and my 3 km HJ8s lol.